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ANDROID: Caused by: java.lang.reflect.InvocationTargetException

I'm trying insert data from edittext into DB but i get these errors and can't solve it. I created DBHelper which code is below, just like class for adding data in DB. Also constructors and getters and setters. I really need some help.
02-01 22:22:07.180 23428-23428/? E/SQLiteLog: (1) AUTOINCREMENT is only allowed on an INTEGER PRIMARY KEY
02-01 22:22:07.200 23428-23428/? W/dalvikvm: threadid=1: thread exiting with uncaught exception (group=0x42020540)
02-01 22:22:07.380 23428-23428/? E/AndroidRuntime: FATAL EXCEPTION: main
java.lang.IllegalStateException: Could not execute method for android:onClick
at android.support.v7.app.AppCompatViewInflater$DeclaredOnClickListener.onClick(AppCompatViewInflater.java:275)
at android.view.View.performClick(View.java:4102)
at android.view.View$PerformClick.run(View.java:17085)
at android.os.Handler.handleCallback(Handler.java:615)
at android.os.Handler.dispatchMessage(Handler.java:92)
at android.os.Looper.loop(Looper.java:155)
at android.app.ActivityThread.main(ActivityThread.java:5520)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1029)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:796)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.reflect.InvocationTargetException
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at android.support.v7.app.AppCompatViewInflater$DeclaredOnClickListener.onClick(AppCompatViewInflater.java:270)
at android.view.View.performClick(View.java:4102) 
at android.view.View$PerformClick.run(View.java:17085) 
at android.os.Handler.handleCallback(Handler.java:615) 
at android.os.Handler.dispatchMessage(Handler.java:92) 
at android.os.Looper.loop(Looper.java:155) 
at android.app.ActivityThread.main(ActivityThread.java:5520) 
at java.lang.reflect.Method.invokeNative(Native Method) 
at java.lang.reflect.Method.invoke(Method.java:511) 
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1029) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:796) 
at dalvik.system.NativeStart.main(Native Method) 
Caused by: android.database.sqlite.SQLiteException: AUTOINCREMENT is only allowed on an INTEGER PRIMARY KEY (code 1): , while compiling: CREATE TABLE Logs(_idINTEGER PRIMARY KEY AUTOINCREMENT,titleTEXT,plate_numberTEXT,sort_idTEXT,gradeTEXT,diameterTEXT,lengthTEXT,survey_idINTEGER AUTOINCREMENT);
at android.database.sqlite.SQLiteConnection.nativePrepareStatement(Native Method)
at android.database.sqlite.SQLiteConnection.acquirePreparedStatement(SQLiteConnection.java:909)
at android.database.sqlite.SQLiteConnection.prepare(SQLiteConnection.java:520)
at android.database.sqlite.SQLiteSession.prepare(SQLiteSession.java:588)
at android.database.sqlite.SQLiteProgram.<init>(SQLiteProgram.java:58)
at android.database.sqlite.SQLiteStatement.<init>(SQLiteStatement.java:31)
at android.database.sqlite.SQLiteDatabase.executeSql(SQLiteDatabase.java:1719)
at android.database.sqlite.SQLiteDatabase.execSQL(SQLiteDatabase.java:1650)
at com.example.matija.ams.LogsDBHandler.onCreate(LogsDBHandler.java:51)
at android.database.sqlite.SQLiteOpenHelper.getDatabaseLocked(SQLiteOpenHelper.java:252)
at android.database.sqlite.SQLiteOpenHelper.getWritableDatabase(SQLiteOpenHelper.java:164)
at com.example.matija.ams.LogsDBHandler.addLogs(LogsDBHandler.java:62)
at com.example.matija.ams.AddLogs.saveButtonClicked(AddLogs.java:55)
at java.lang.reflect.Method.invokeNative(Native Method) 
at java.lang.reflect.Method.invoke(Method.java:511) 
at android.support.v7.app.AppCompatViewInflater$DeclaredOnClickListener.onClick(AppCompatViewInflater.java:270) 
at android.view.View.performClick(View.java:4102) 
at android.view.View$PerformClick.run(View.java:17085) 
at android.os.Handler.handleCallback(Handler.java:615) 
at android.os.Handler.dispatchMessage(Handler.java:92) 
at android.os.Looper.loop(Looper.java:155) 
at android.app.ActivityThread.main(ActivityThread.java:5520) 
at java.lang.reflect.Method.invokeNative(Native Method) 
at java.lang.reflect.Method.invoke(Method.java:511) 
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1029) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:796) 
at dalvik.system.NativeStart.main(Native Method) 
02-01 22:22:09.240 23428-23428/? D/Process: killProcess, pid=23428
02-01 22:22:09.270 23428-23428/? D/Process: dalvik.system.VMStack.getThreadStackTrace(Native Method)
02-01 22:22:09.270 23428-23428/? D/Process: java.lang.Thread.getStackTrace(Thread.java:599)
02-01 22:22:09.270 23428-23428/? D/Process: android.os.Process.killProcess(Process.java:956)
02-01 22:22:09.270 23428-23428/? D/Process: com.android.internal.os.RuntimeInit$UncaughtHandler.uncaughtException(RuntimeInit.java:108)
02-01 22:22:09.270 23428-23428/? D/Process: java.lang.ThreadGroup.uncaughtException(ThreadGroup.java:693)
02-01 22:22:09.270 23428-23428/? D/Process: java.lang.ThreadGroup.uncaughtException(ThreadGroup.java:690)
02-01 22:22:09.270 23428-23428/? D/Process: dalvik.system.NativeStart.main(Native Method)
And this is my DbHandler with add method
public class LogsDBHandler extends SQLiteOpenHelper {
//DB version
private static final int DATABASE_VERSION = 11;
// DB name
private static final String DATABASE_NAME = "Log";
//table name
public static final String TABLE_LOGS = "Logs";
public static final String TABLE_SURVEY = "SURVEY";
//TableLogs column names
public static final String KEY_ID = "_id";
public static final String KEY_TITLE = "title";
public static final String KEY_PLATE_NUMBER = "plate_number";
public static final String KEY_SORTID = "sort_id";
public static final String KEY_GRADE = "grade";
public static final String KEY_DIAMETER = "diameter";
public static final String KEY_LENGTH = "length";
public static final String KEY_SURVEYID = "survey_id";
//TableSurvey column names
public static final String KEY_CREATEDAT = "created_at";
public static final String KEY_SURVEY_TITLE = "survey_title";
public static final String KEY_STATE = "state";
public LogsDBHandler(Context context, String name, SQLiteDatabase.CursorFactory factory, int version) {
super(context, DATABASE_NAME, factory, DATABASE_VERSION);
}
#Override
public void onCreate(SQLiteDatabase db) {
String CREATE_LOGS_TABLE = "CREATE TABLE " + TABLE_LOGS + "(" +
KEY_ID + "INTEGER PRIMARY KEY AUTOINCREMENT," +
KEY_TITLE + "TEXT," + KEY_PLATE_NUMBER + "TEXT," +
KEY_SORTID + "TEXT," + KEY_GRADE + "TEXT," +
KEY_DIAMETER + "TEXT," + KEY_LENGTH + "TEXT," +
KEY_SURVEYID + "INTEGER AUTOINCREMENT" +");";
db.execSQL(CREATE_LOGS_TABLE);
}
#Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
db.execSQL("DROP TABLE IF EXISTS " + TABLE_LOGS);
onCreate(db);
}
//add new row
public void addLogs(Logs log) {
SQLiteDatabase db = getWritableDatabase();
ContentValues values = new ContentValues();
values.put(KEY_TITLE, log.get_title());
values.put(KEY_PLATE_NUMBER, log.get_plate_number());
values.put(KEY_SORTID, log.get_sort_id());
values.put(KEY_GRADE, log.get_grade());
values.put(KEY_DIAMETER, log.get_diameter());
values.put(KEY_LENGTH, log.get_length());
db.insert(TABLE_LOGS, null, values);
db.close();
}
}
So next code is for adding data from edittext to database. If anything is wrong please tell me.
public class AddLogs extends AppCompatActivity {
private EditText title;
private EditText plate_number;
private Spinner sort_id;
private Spinner grade;
private EditText diameter;
private EditText length;
LogsDBHandler dbHandler;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_add_logs);
final Button changeActivityButton1 = (Button) findViewById(R.id.btn_back);
changeActivityButton1.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View aView) {
Intent toAnotherActivity = new Intent(aView.getContext(), MainActivity.class);
startActivityForResult(toAnotherActivity, 0);
}
});
title = (EditText) findViewById(R.id.inputTitle);
plate_number = (EditText) findViewById(R.id.supplierNumberInput);
sort_id = (Spinner) findViewById(R.id.spinnerSortInput);
grade = (Spinner) findViewById(R.id.spinnerClassInput);
diameter = (EditText) findViewById(R.id.diameterInput);
length = (EditText) findViewById(R.id.lengthInput);
dbHandler = new LogsDBHandler(this, null, null, 1);
}
public void saveButtonClicked(View view) {
Logs log = new Logs(title.getText().toString(), plate_number.getText().toString(),
sort_id.getSelectedItem().toString(), grade.getSelectedItem().toString(),
diameter.getText().toString(), length.getText().toString());
dbHandler.addLogs(log);
Toast.makeText(getBaseContext(), "Spremljeno", Toast.LENGTH_SHORT ).show();
}
}
So this is all code (i didn't put the code with constructors, getters and setters). So i anybody knows what is the problem please say and write. Thanks.

Your SQL is not formatted correctly. You don't have spaces between the column names and the rest of their properties. That's why the exception root cause is:
Caused by: android.database.sqlite.SQLiteException: AUTOINCREMENT is only allowed on an INTEGER PRIMARY KEY (code 1): , while compiling: CREATE TABLE Logs(_idINTEGER PRIMARY KEY AUTOINCREMENT,titleTEXT,plate_numberTEXT,sort_idTEXT,gradeTEXT,diameterTEXT,lengthTEXT,survey_idINTEGER AUTOINCREMENT);
Take a look at your onCreate callback:
String CREATE_LOGS_TABLE = "CREATE TABLE " + TABLE_LOGS + "(" +
KEY_ID + "INTEGER PRIMARY KEY AUTOINCREMENT," +
KEY_TITLE + "TEXT," + KEY_PLATE_NUMBER + "TEXT," +
KEY_SORTID + "TEXT," + KEY_GRADE + "TEXT," +
KEY_DIAMETER + "TEXT," + KEY_LENGTH + "TEXT," +
KEY_SURVEYID + "INTEGER AUTOINCREMENT" +");";
If you are going to manually build the SQL string, instead of using a migration library such as Flyway, you need to ensure your SQL is formatted according to the standard.

SQLite Exception: near "=" on delete query

I am having an issue with my college project. I am trying to delete a row from my one of my tables using the following query.
//---deletes a particular match---
public boolean deleteMatch(String name) {
SQLiteDatabase sqLiteDatabase = getWritableDatabase();
return sqLiteDatabase.delete(TABLE_FIXTURES, MATCH_OPPONENT + " = " + name, null) > 0;
}
Here I am trying to delete a record based upon the match_opponent and passing the String value name.
I am then calling this method in my EditSchedule activity below:
public class EditSchedule extends AppCompatActivity {
public Button fixtureSearch;
public EditText opponentName;
public String searchTerm;
ListView editMatch;
DBHelper dbHelper = new DBHelper(this);
SQLiteDatabase sqLiteDatabase;
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_editfixture);
editMatch = (ListView) findViewById(R.id.listViewEditMatch);
opponentName = (EditText) findViewById(R.id.fixtureOpponentDelete);
searchTerm = opponentName.getText().toString();
fixtureSearch = (Button) findViewById(R.id.fixtureSearchButton);
fixtureSearch.setOnClickListener(
new View.OnClickListener() {
#Override
public void onClick(View v) {
dbHelper.deleteMatch(searchTerm);
}
}
);
}
}
So when I test my application by typing in a name of an opponent that I have in the fixture table and clicking on the delete button, I get the following error:
01-06 07:49:42.476 25778-25778/com.example.myacer.clubhub E/AndroidRuntime﹕ FATAL EXCEPTION: main
android.database.sqlite.SQLiteException: near "=": syntax error (code 1): , while compiling: DELETE FROM fixtures WHERE match_opponent =
at android.database.sqlite.SQLiteConnection.nativePrepareStatement(Native Method)
at android.database.sqlite.SQLiteConnection.acquirePreparedStatement(SQLiteConnection.java:889)
at android.database.sqlite.SQLiteConnection.prepare(SQLiteConnection.java:500)
at android.database.sqlite.SQLiteSession.prepare(SQLiteSession.java:588)
at android.database.sqlite.SQLiteProgram.<init>(SQLiteProgram.java:58)
at android.database.sqlite.SQLiteStatement.<init>(SQLiteStatement.java:31)
at android.database.sqlite.SQLiteDatabase.delete(SQLiteDatabase.java:1494)
at com.example.myacer.clubhub.database.DBHelper.deleteMatch(DBHelper.java:243)
at com.example.myacer.clubhub.manager.EditSchedule$1.onClick(EditSchedule.java:47)
at android.view.View.performClick(View.java:4240)
at android.view.View$PerformClick.run(View.java:17721)
at android.os.Handler.handleCallback(Handler.java:730)
at android.os.Handler.dispatchMessage(Handler.java:92)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:5103)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:525)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
at dalvik.system.NativeStart.main(Native Method)
Can anyone see where I am going wrong? All help greatly appreciated.

You are passing blank value in deleteMatch(), put searchTerm = opponentName.getText().toString(); inside onClick()
fixtureSearch.setOnClickListener(
new View.OnClickListener() {
#Override
public void onClick(View v) {
searchTerm = opponentName.getText().toString();
dbHelper.deleteMatch(searchTerm);
}
}
);
As well as change your deleteMatch() method
sqLiteDatabase.delete(TABLE_FIXTURES, MATCH_OPPONENT + " = ?",new String[]{name});

try this:
sqLiteDatabase.delete(TABLE_FIXTURES, MATCH_OPPONENT + " = ?", new String[]{name})

App closes on insert query SQLlite

My app closes when i insert this sample records for testing, i tried it in many ways. from activity class im sending string values to insert to the database.
My MainInvoiceActivity Class
public class MainInvoiceActivity extends Activity {
private DBHelper mydb ;
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main_invoice);
if ( mydb.insertsample( "one" , "two" , "3" )){ // LINE NO 67
Toast.makeText(getApplicationContext(), "Insert Success!", Toast.LENGTH_SHORT).show();
}
else{
Toast.makeText(getApplicationContext(), "not done", Toast.LENGTH_SHORT).show();
}
}
}
My database SQLiteOpenHelper class
public class DBHelper extends SQLiteOpenHelper {
public static final String DATABASE_NAME = "MyDBName.db";
public static final String TABLE_SAMPLE = "sample";
public DBHelper(Context context)
{
super(context, DATABASE_NAME , null, 1);
}
public void onCreate(SQLiteDatabase db) {
String CREATE_SAMPLE_TABLE = "CREATE TABLE sample ( " +
"id INTEGER PRIMARY KEY AUTOINCREMENT, " +
"one TEXT, "+
"two TEXT, "+
"three TEXT )";
db.execSQL(CREATE_SAMPLE_TABLE);
}
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
db.execSQL("DROP TABLE IF EXISTS sample");
onCreate(db);
}
public boolean insertsample (String one, String two, String three)
{
SQLiteDatabase db = this.getWritableDatabase();
ContentValues myValues = new ContentValues();
myValues.put(one, one);
myValues.put(two, two);
myValues.put(three, three);
db.insert(TABLE_SAMPLE, null, myValues);
return true;
}
}
LOG message
E/AndroidRuntime(1153): FATAL EXCEPTION: main
E/AndroidRuntime(1153): Process: com.ezycode.pos, PID: 1153
E/AndroidRuntime(1153): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.ezycode.pos/com.ezycode.pos.MainInvoiceActivity}: java.lang.NullPointerException
E/AndroidRuntime(1153): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2195)
E/AndroidRuntime(1153): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2245)
E/AndroidRuntime(1153): at android.app.ActivityThread.access$800(ActivityThread.java:135)
E/AndroidRuntime(1153): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196)
E/AndroidRuntime(1153): at android.os.Handler.dispatchMessage(Handler.java:102)
E/AndroidRuntime(1153): at android.os.Looper.loop(Looper.java:136)
E/AndroidRuntime(1153): at android.app.ActivityThread.main(ActivityThread.java:5017)
E/AndroidRuntime(1153): at java.lang.reflect.Method.invokeNative(Native Method)
E/AndroidRuntime(1153): at java.lang.reflect.Method.invoke(Method.java:515)
E/AndroidRuntime(1153): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
E/AndroidRuntime(1153): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
E/AndroidRuntime(1153): at dalvik.system.NativeStart.main(Native Method)
E/AndroidRuntime(1153): Caused by: java.lang.NullPointerException
E/AndroidRuntime(1153): at com.ezycode.pos.MainInvoiceActivity.onCreate(MainInvoiceActivity.java:67)
E/AndroidRuntime(1153): at android.app.Activity.performCreate(Activity.java:5231)
E/AndroidRuntime(1153): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
E/AndroidRuntime(1153): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2159)

Correct code will be like something below
public class MainInvoiceActivity extends Activity {
private DBHelper mydb ;
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main_invoice);
mydb = new DBHelper(this); //This is missing your code.
if ( mydb.insertsample( "one" , "two" , "3" )){ // LINE NO 67
Toast.makeText(getApplicationContext(), "Insert Success!", Toast.LENGTH_SHORT).show();
}else{
Toast.makeText(getApplicationContext(), "not done", Toast.LENGTH_SHORT).show();
}
}

Null Pointer Exception : coudnt find solution

I am getting error in my code which is not understandable.. please help me find out what issue is it.
i have database class and main activity.. it shows in log but when it comes to appear at my emulator's screen it gives me error.
my database class:
package com.example.nearby_places;
import java.util.ArrayList;
import java.util.List;
import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import android.util.Log;
public class Database extends SQLiteOpenHelper {
//database name & version number
private static final String db_name = "nearby_places";
private static final int db_version = 1;
//tables
private static final String table_placetypes = "placetypes";
private static final String table_places = "table_places";
//column names
private static final String type_id = "type_id";
private static final String type_name = "type_name";
private static final String place_id = "place_id";
private static final String place_name = "place_name";
private static final String place_address = "place_address";
private static final String place_contact = "place_contact";
public Database(Context context) {
super(context, db_name, null, db_version);
// TODO Auto-generated constructor stub
}
// create table queries
String create_table_placetypes = "CREATE TABLE IF NOT EXISTS " + table_placetypes + "("
+ type_id + " INTEGER PRIMARY KEY NOT NULL," + type_name + " TEXT" + ")";
String create_table_places = "CREATE TABLE IF NOT EXISTS table_places (place_id INTEGER PRIMARY KEY NOT NULL, place_name TEXT, place_address TEXT, place_contact TEXT, type_id INTEGER, FOREIGN KEY (type_id) REFERENCES table_placetypes(type_id))";
#Override
public void onCreate(SQLiteDatabase db) {
// TODO Auto-generated method stub
db.execSQL(create_table_placetypes);
Log.d("creating", "placetypes created");
db.execSQL(create_table_places);
Log.d("creating", "places created");
}
#Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
// TODO Auto-generated method stub
db.execSQL("DROP TABLE IF EXISTS " + table_placetypes);
db.execSQL("DROP TABLE IF EXISTS " + table_places);
onCreate(db);
}
// add placetypes
void addplacetypes (placetypes pt) {
SQLiteDatabase db = getWritableDatabase();
ContentValues values = new ContentValues();
values.put(type_name, pt.getTypename());
db.insert(table_placetypes, null, values);
db.close();
}
// Getting single placetypes
placetypes getPlacetypes(int id) {
SQLiteDatabase db = this.getReadableDatabase();
Cursor cursor = db.query(table_placetypes, new String[] {type_id,
type_name }, type_id + "=?",
new String[] { String.valueOf(id) }, null, null, null, null);
if (cursor != null)
cursor.moveToFirst();
placetypes pt = new placetypes(Integer.parseInt(cursor.getString(0)),
cursor.getString(1));
// return contact
return pt;
}
// Getting All placetypes
public List<placetypes> getAllPlacetypes() {
List<placetypes> placetypesList = new ArrayList<placetypes>();
// Select All Query
String selectQuery = "SELECT * FROM " + table_placetypes;
SQLiteDatabase db = this.getWritableDatabase();
Cursor cursor = db.rawQuery(selectQuery, null);
// looping through all rows and adding to list
if (cursor.moveToFirst()) {
do {
placetypes pt = new placetypes();
pt.setTypeid(Integer.parseInt(cursor.getString(0)));
pt.setTypename(cursor.getString(1));
//String name = cursor.getString(1);
//MainActivity.ArrayofName.add(name);
// Adding contact to list
placetypesList.add(pt);
} while (cursor.moveToNext());
}
// return placetype list
return placetypesList;
}
// Getting placetypes Count
public int getPlacetypesCount() {
String countQuery = "SELECT * FROM " + table_placetypes;
SQLiteDatabase db = this.getReadableDatabase();
Cursor cursor = db.rawQuery(countQuery, null);
cursor.close();
// return count
return cursor.getCount();
}
public void addplaces(places p) {
SQLiteDatabase db = getWritableDatabase();
ContentValues values = new ContentValues();
values.put(place_name, p.getPlace_name());
values.put(place_address, p.getPlace_address());
values.put(place_contact, p.getPlace_contact());
values.put(type_id, p.getT_id());
Log.d("Type ID", String.valueOf(p.getT_id()));
db.insert(table_places, null, values);
db.close();
}
places getPlaces(int pid) {
SQLiteDatabase db = getReadableDatabase();
Cursor cursor = db.query(table_places, new String[] {place_id, place_name, place_address, place_contact,type_id}, place_id + "=?", new String[] { String.valueOf(pid) } , null, null, null, null);
if(cursor != null)
cursor.moveToFirst();
places p = new places(Integer.parseInt(cursor.getString(0)),
Integer.parseInt(cursor.getString(1)),
cursor.getString(2),
cursor.getString(3),
cursor.getString(4)
);
cursor.close();
return p;
}
public List<places> getAllPlaces(String typeName) {
List<places> placeList = new ArrayList<places>();
//String selectQuery = "SELECT * FROM table_places INNER JOIN placetypes ON placetypes.type_id=table_places.type_id ";
//String selectQuery = "SELECT * FROM table_places WHERE table_places.type_id="+Integer.toString(typeid);
String selectQuery ="SELECT * FROM table_places WHERE placetypes.place_name="+typeName+" INNER JOIN placetypes ON placetypes.type_id=table_places.type_id";
SQLiteDatabase db = this.getWritableDatabase();
Cursor cursor = db.rawQuery(selectQuery, null);
if(cursor.moveToFirst() )
{
do{
places p = new places();
/*p.setT_id(cursor.getColumnIndex(type_id));
p.setPlace_id(cursor.getColumnIndex(place_id));
p.setPlace_name(cursor.getColumnIndex(place_name));
*/
p.setT_id(cursor.getInt(0));
p.setPlace_id(cursor.getInt(1));
p.setPlace_name(cursor.getString(2));
p.setPlace_address(cursor.getString(3));
p.setPlace_contact(cursor.getString(4));
/*String t_id = cursor.getString(4);
String p_name = cursor.getString(2);
String p_address = cursor.getString(3);
String p_contact = cursor.getString(1);*/
placeList.add(p);
}while(cursor.moveToNext());
}
cursor.close();
return placeList;
}
public int getPlaceCount () {
String selectQuery = "SELECT * FROM " +table_places;
SQLiteDatabase db = getReadableDatabase();
Cursor cursor = db.rawQuery(create_table_places, null);
cursor.close();
return cursor.getCount();
}
}
MainActivity
package com.example.nearby_places;
import java.util.ArrayList;
import java.util.List;
import android.os.Bundle;
import android.app.Activity;
import android.content.Intent;
import android.util.Log;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;
import android.widget.AdapterView.OnItemClickListener;
public class MainActivity extends Activity {
private ListView listView;
public static ArrayList<String> ArrayofName = new ArrayList<String>();
public static final String PLACETYPE = "com.example";
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Database db = new Database(this);
if(db.getAllPlacetypes().isEmpty())
{
/**
* CRUD Operations
* */
// Inserting Places
Log.d("Insert: ", "Inserting ..");
db.addplacetypes(new placetypes("RESTURAUNTS"));
db.addplacetypes(new placetypes("MALLS"));
db.addplacetypes(new placetypes("GAS STATIONS"));
db.addplacetypes(new placetypes("HOTELS"));
db.addplacetypes(new placetypes("MOTELS"));
}
// Reading all Places
Log.d("Reading: ", "Reading all placetypes..");
if(ArrayofName.isEmpty())
{
List<placetypes> placetypes = db.getAllPlacetypes();
for (placetypes pt : placetypes)
{
String log = "Id: "+pt.getTypeid()+" ,Name: " + pt.getTypename();
// Writing Places to log
Log.d("Name: ", log);
System.out.println(log);
ArrayofName.add(pt.getTypename());
}
}
listView = (ListView) findViewById(R.id.listView1);
ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,
android.R.layout.simple_list_item_1, ArrayofName);
int pos = listView.getAdapter().getCount() -1;
listView.getAdapter().getItemId(pos);
listView.setAdapter(adapter);
listView.setOnItemClickListener(new OnItemClickListener()
{
public void onItemClick(AdapterView<?> parent, View v, int position, long id)
{
String type = ((TextView) v).getText().toString();
Toast.makeText(getApplicationContext(), type, Toast.LENGTH_SHORT).show();
Intent i = new Intent(getApplicationContext(),MainActivity2.class);
i.putExtra(PLACETYPE, type);
startActivity(i);
/*Cursor cursor = (Cursor) parent.getItemAtPosition(position);
Toast.makeText(getApplicationContext(), "id: " +id+ "position: " +position+ "row id: " +(cursor.getColumnIndex("" +
"")), Toast.LENGTH_LONG).show();
*/
Intent intent = new Intent(MainActivity.this, MainActivity2.class);
startActivity(intent);
}
}
);
}
}
Logcat
10-11 17:21:51.871: D/Reading:(4932): Reading all placetypes..
10-11 17:21:51.871: D/Name:(4932): Id: 1 ,Name: RESTURAUNTS
10-11 17:21:51.875: I/System.out(4932): Id: 1 ,Name: RESTURAUNTS
10-11 17:21:51.875: D/Name:(4932): Id: 2 ,Name: MALLS
10-11 17:21:51.875: I/System.out(4932): Id: 2 ,Name: MALLS
10-11 17:21:51.875: D/Name:(4932): Id: 3 ,Name: GAS STATIONS
10-11 17:21:51.875: I/System.out(4932): Id: 3 ,Name: GAS STATIONS
10-11 17:21:51.875: D/Name:(4932): Id: 4 ,Name: HOTELS
10-11 17:21:51.875: I/System.out(4932): Id: 4 ,Name: HOTELS
10-11 17:21:51.875: D/Name:(4932): Id: 5 ,Name: MOTELS
10-11 17:21:51.875: I/System.out(4932): Id: 5 ,Name: MOTELS
10-11 17:21:51.887: D/AndroidRuntime(4932): Shutting down VM
10-11 17:21:51.887: W/dalvikvm(4932): threadid=1: thread exiting with uncaught exception (group=0x41c77300)
10-11 17:21:51.894: E/AndroidRuntime(4932): FATAL EXCEPTION: main
10-11 17:21:51.894: E/AndroidRuntime(4932): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.nearby_places/com.example.nearby_places.MainActivity}: java.lang.NullPointerException
10-11 17:21:51.894: E/AndroidRuntime(4932): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2059)
10-11 17:21:51.894: E/AndroidRuntime(4932): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2084)
10-11 17:21:51.894: E/AndroidRuntime(4932): at android.app.ActivityThread.access$600(ActivityThread.java:130)
10-11 17:21:51.894: E/AndroidRuntime(4932): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1195)
10-11 17:21:51.894: E/AndroidRuntime(4932): at android.os.Handler.dispatchMessage(Handler.java:99)
10-11 17:21:51.894: E/AndroidRuntime(4932): at android.os.Looper.loop(Looper.java:137)
10-11 17:21:51.894: E/AndroidRuntime(4932): at android.app.ActivityThread.main(ActivityThread.java:4745)
10-11 17:21:51.894: E/AndroidRuntime(4932): at java.lang.reflect.Method.invokeNative(Native Method)
10-11 17:21:51.894: E/AndroidRuntime(4932): at java.lang.reflect.Method.invoke(Method.java:511)
10-11 17:21:51.894: E/AndroidRuntime(4932): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)
10-11 17:21:51.894: E/AndroidRuntime(4932): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
10-11 17:21:51.894: E/AndroidRuntime(4932): at dalvik.system.NativeStart.main(Native Method)
10-11 17:21:51.894: E/AndroidRuntime(4932): Caused by: java.lang.NullPointerException
10-11 17:21:51.894: E/AndroidRuntime(4932): at com.example.nearby_places.MainActivity.onCreate(MainActivity.java:62)
10-11 17:21:51.894: E/AndroidRuntime(4932): at android.app.Activity.performCreate(Activity.java:5008)
10-11 17:21:51.894: E/AndroidRuntime(4932): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1079)
10-11 17:21:51.894: E/AndroidRuntime(4932): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2023)
10-11 17:21:51.894: E/AndroidRuntime(4932): ... 11 more
10-11 17:21:53.695: I/Process(4932): Sending signal. PID: 4932 SIG: 9

Your call to getAdapter is returning null because you're calling it before setAdapter, try this instead :
listView.setAdapter(adapter);
int pos = listView.getAdapter().getCount() -1;
listView.getAdapter().getItemId(pos);

If you have a NULLPOINTER Exception please have a deep look at your LogCat. Especial at the Line where it says Caused by.
Learn how to read and use your LogCat, and try to find the Line where it mentions your class/package name and analyse this line.
Caused by: java.lang.NullPointerException
10-11 17:21:51.894: E/AndroidRuntime(4932): at com.example.nearby_places.MainActivity.onCreate(MainActivity.java:62)

The problem is in
List<placetypes> placetypes = db.getAllPlacetypes();
The query you are using is wrong. It should be
`SELECT * FROM table_places INNER JOIN placetypes ON placetypes.type_id=table_places.type_id WHERE placetypes.place_name="+typeName+`"

Arraylist not working with android

I got a problem and I can't find it anywhere.
So I'am making this quiz app. And I got my mainactivity here:
public class MainActivity extends Activity {
List<Vragen> quesList;
int score=0;
int qid=0;
Vragen currentQ;
TextView txtVragen;
RadioButton rda, rdb, rdc;
Button butVolgende;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
DBHelper db=new DBHelper(this);
quesList=db.getAllVragen();
currentQ=quesList.get(qid);
txtVragen=(TextView)findViewById(R.id.txtVraag);
rda=(RadioButton)findViewById(R.id.antwoord1);
rdb=(RadioButton)findViewById(R.id.antwoord2);
rdc=(RadioButton)findViewById(R.id.antwoord3);
butVolgende=(Button)findViewById(R.id.btnVolgende);
setVragenView();
butVolgende.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
RadioGroup grp=(RadioGroup)findViewById(R.id.grpAntwoord);
RadioButton antwoord=(RadioButton)findViewById(grp.getCheckedRadioButtonId());
Log.d("yourans", currentQ.getANTWOORD()+" "+antwoord.getText());
if(currentQ.getANTWOORD().equals(antwoord.getText()))
{
score++;
Log.d("score", "Your score"+score);
}
if(qid<5){
currentQ=quesList.get(qid);
setVragenView();
}else{
Intent intent = new Intent(MainActivity.this, ResultActivity.class);
Bundle b = new Bundle();
b.putInt("score", score); //Your score
intent.putExtras(b); //Put your score to your next Intent
startActivity(intent);
finish();
}
}
});
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.activity_main, menu);
return true;
}
private void setVragenView()
{
txtVragen.setText(currentQ.getVRAAG());
rda.setText(currentQ.getOPT1());
rdb.setText(currentQ.getOPT2());
rdc.setText(currentQ.getOPT3());
qid++;
}
}
Here is my DBHelper and the questions are in there:
public class DBHelper extends SQLiteOpenHelper {
private static final int DATABASE_VERSION = 1;
// Database Name
private static final String DATABASE_NAME = "DBQuiz";
// tasks table name
private static final String TABLE_QUEST = "quest";
// tasks Table Columns names
private static final String KEY_ID = "id";
private static final String KEY_VRAAG = "vraag";
private static final String KEY_ANTWOORD = "antwoord"; //correct option
private static final String KEY_OPT1= "opt1"; //option 1
private static final String KEY_OPT2= "opt2"; //option 2
private static final String KEY_OPT3= "opt3"; //option 3
private SQLiteDatabase dbase;
public DBHelper(Context context) {
super(context, DATABASE_NAME, null, DATABASE_VERSION);
}
#Override
public void onCreate(SQLiteDatabase db) {
dbase=db;
String sql = "CREATE TABLE IF NOT EXISTS " + TABLE_QUEST + " ( "
+ KEY_ID + " INTEGER PRIMARY KEY AUTOINCREMENT, " + KEY_VRAAG
+ " TEXT, " + KEY_ANTWOORD+ " TEXT, "+KEY_OPT1 +" TEXT, "
+KEY_OPT2 +" TEXT, "+KEY_OPT3+" TEXT)";
db.execSQL(sql);
addVragen();
//db.close();
}
private void addVragen()
{
Vragen q1=new Vragen("Which company is the largest manufacturer" +
" of network equipment?","HP", "IBM", "CISCO", "CISCO");
this.addVraag(q1);
Vragen q2=new Vragen("Which of the following is NOT " +
"an operating system?", "SuSe", "BIOS", "DOS", "BIOS");
this.addVraag(q2);
Vragen q3=new Vragen("Which of the following is the fastest" +
" writable memory?","RAM", "FLASH","Register","Register");
this.addVraag(q3);
Vragen q4=new Vragen("Which of the following device" +
" regulates internet traffic?", "Router", "Bridge", "Hub","Router");
this.addVraag(q4);
Vragen q5=new Vragen("Which of the following is NOT an" +
" interpreted language?","Ruby","Python","BASIC","BASIC");
this.addVraag(q5);
}
#Override
public void onUpgrade(SQLiteDatabase db, int oldV, int newV) {
// Drop older table if existed
db.execSQL("DROP TABLE IF EXISTS " + TABLE_QUEST);
// Create tables again
onCreate(db);
}
// Adding new question
public void addVraag(Vragen quest) {
//SQLiteDatabase db = this.getWritableDatabase();
ContentValues values = new ContentValues();
values.put(KEY_VRAAG, quest.getVRAAG());
values.put(KEY_ANTWOORD, quest.getANTWOORD());
values.put(KEY_OPT1, quest.getOPT1());
values.put(KEY_OPT2, quest.getOPT2());
values.put(KEY_OPT3, quest.getOPT3());
// Inserting Row
dbase.insert(TABLE_QUEST, null, values);
}
public List<Vragen> getAllVragen() {
List<Vragen> quesList = new ArrayList<Vragen>();
// Select All Query
String selectQuery = "SELECT * FROM " + TABLE_QUEST;
dbase=this.getReadableDatabase();
Cursor cursor = dbase.rawQuery(selectQuery, null);
// looping through all rows and adding to list
if (cursor.moveToFirst()) {
do {
Vragen quest = new Vragen();
quest.setID(cursor.getInt(0));
quest.setVRAAG(cursor.getString(1));
quest.setANTWOORD(cursor.getString(2));
quest.setOPT1(cursor.getString(3));
quest.setOPT2(cursor.getString(4));
quest.setOPT3(cursor.getString(5));
quesList.add(quest);
} while (cursor.moveToNext());
}
// return quest list
return quesList;
}
public int rowcount()
{
int row=0;
String selectQuery = "SELECT * FROM " + TABLE_QUEST;
SQLiteDatabase db = this.getWritableDatabase();
Cursor cursor = db.rawQuery(selectQuery, null);
row=cursor.getCount();
return row;
}
}
And here is my Logcat:
08-28 14:33:58.440: W/dalvikvm(21832): threadid=1: thread exiting with uncaught exception (group=0x416e32a0)
08-28 14:33:58.460: E/AndroidRuntime(21832): FATAL EXCEPTION: main
08-28 14:33:58.460: E/AndroidRuntime(21832): java.lang.IndexOutOfBoundsException: Invalid index 1, size is 1
08-28 14:33:58.460: E/AndroidRuntime(21832): at java.util.ArrayList.throwIndexOutOfBoundsException(ArrayList.java:251)
08-28 14:33:58.460: E/AndroidRuntime(21832): at java.util.ArrayList.get(ArrayList.java:304)
08-28 14:33:58.460: E/AndroidRuntime(21832): at com.laurenswuytsjordipapen.cultural.pursuit.MainActivity$1.onClick(MainActivity.java:55)
08-28 14:33:58.460: E/AndroidRuntime(21832): at android.view.View.performClick(View.java:4262)
08-28 14:33:58.460: E/AndroidRuntime(21832): at android.view.View$PerformClick.run(View.java:17421)
08-28 14:33:58.460: E/AndroidRuntime(21832): at android.os.Handler.handleCallback(Handler.java:615)
08-28 14:33:58.460: E/AndroidRuntime(21832): at android.os.Handler.dispatchMessage(Handler.java:92)
08-28 14:33:58.460: E/AndroidRuntime(21832): at android.os.Looper.loop(Looper.java:137)
08-28 14:33:58.460: E/AndroidRuntime(21832): at android.app.ActivityThread.main(ActivityThread.java:4944)
08-28 14:33:58.460: E/AndroidRuntime(21832): at java.lang.reflect.Method.invokeNative(Native Method)
08-28 14:33:58.460: E/AndroidRuntime(21832): at java.lang.reflect.Method.invoke(Method.java:511)
08-28 14:33:58.460: E/AndroidRuntime(21832): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1038)
08-28 14:33:58.460: E/AndroidRuntime(21832): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:805)
08-28 14:33:58.460: E/AndroidRuntime(21832): at dalvik.system.NativeStart.main(Native Method)
Can anybody please help me I'm stuck and need to get this finished.
Thanks in advance!

java.lang.IndexOutOfBoundsException: Invalid index 1, size is 1
Means that you tried to get the second element in an ArrayList that had only one element. So that means that when you do
quesList=db.getAllVragen();
You only get one result

TABLE_QUEST table you have only single record
your qid is more then the size of your quesList
Check the quesList.size() compare to qid
may be qid = 2 array size is 1.

Can You Please print the logs checking the size, before accessing the
list and while returning the list from your getAllVragen method. As
you are accessing index 1(means second element) but size is 1 so you
should access index 0 .
For ex : Here is my program
import java.util.*;
public class Test{
public static void main(String args[]){
List abc = new ArrayList();
abc.add("Meena");
System.out.println("list element is : "+abc.get(1));
}
}
In above program my list size is 1 and accessing index 1(i.e 2 element). As a result i got following exception same as yours:
Exception in thread "main" java.lang.IndexOutOfBoundsException: Index: 1, Size:
1
at java.util.ArrayList.rangeCheck(Unknown Source)
at java.util.ArrayList.get(Unknown Source)
at Test.main(Test.java:10)
So in short,
nth element in list is represented by index n-1