I want to use a String out of an other class, but I only get null.
I tried to get the values with the Code here:
System.out.println("Auftrag: " + super.getSollAuftrag1());
System.out.println("Quote: " + super.getSollQuote1());
System.out.println("Teil: " + super.getSollTeil1());
System.out.println("Stueck: " + super.getSollStueck1());
public class ReadText {
public static String sollAuftrag1;
public static String sollQuote1;
public static String sollTeil1;
public static String sollStueck1;
public static String parts;
public static String getParts() {
return parts;
}
public static void setParts(String parts) {
ReadText.parts = parts;
}
protected String getSollAuftrag1() {
return sollAuftrag1;
}
protected void setSollAuftrag1(String sollAuftrag) {
ReadText.sollAuftrag1 = sollAuftrag;
}
public String getSollQuote1() {
return sollQuote1;
}
public void setSollQuote1(String sollQuote) {
ReadText.sollQuote1 = sollQuote;
}
public String getSollTeil1() {
return sollTeil1;
}
public void setSollTeil1(String sollTeil) {
ReadText.sollTeil1 = sollTeil;
}
public String getSollStueck1() {
return sollStueck1;
}
public void setSollStueck1(String sollStueck) {
ReadText.sollStueck1 = sollStueck;
}
public static void main(String[] args) {
// TODO Auto-generated method stub
BufferedReader br = null;
String file_at_path_to_desktop = System.getProperty("user.home") + "\\" + "Desktop" + "\\" + "SollAuftrag.txt";
try {
br = new BufferedReader(new FileReader(new File(file_at_path_to_desktop)));
String line = null;
while ((line = br.readLine()) != null) {
new ArrayList<String>(Arrays.asList(line.split(";")));
String[] parts = line.split(";");
sollAuftrag1 = (parts[0]);
sollQuote1 = (parts[1]);
sollTeil1 = (parts[0]);
sollStueck1 = (parts[1]);
}
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
if (br != null) {
try {
br.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
System.out.println("Auftrag: " + sollAuftrag1);
System.out.println("Unterauftrag: " + sollQuote1);
System.out.println("Teil: " + sollTeil1);
System.out.println("Stueck: " + sollStueck1);
}
}
Related
I have an arraylist of object type:
public static ArrayList crimes = new ArrayList();
The CityCrime.java has the following:
public class CityCrime {
//Instance variables
private String city;
private String state;
private int population;
private int murder;
private int robbery;
private int assault;
private int burglary;
private int larceny;
private int motorTheft;
public int totalCrimes;
public static void main(String[] args) {
}
public int getTotalCrimes() {
return totalCrimes;
}
public void setTotalCrimes(int murder, int robbery, int assault, int burglary, int larceny, int motorTheft) {
this.totalCrimes = murder + robbery + assault + burglary + larceny + motorTheft;
}
public String getCity() {
return city;
}
public void setCity(String city) {
this.city = city;
}
public String getState() {
return state;
}
public void setState(String state) {
if(state.equalsIgnoreCase("ALABAMA")) {
this.state = "AL";
}
else if(state.equalsIgnoreCase("ALASKA")) {
this.state = "AK";
}
else if(state.equalsIgnoreCase("ARIZONA")) {
this.state = "AR";
}
//etc
}
public int getPopulation() {
return population;
}
public void setPopulation(int population) {
this.population = population;
}
public int getMurder() {
return murder;
}
public void setMurder(int murder) {
this.murder = murder;
}
public int getRobbery() {
return robbery;
}
public void setRobbery(int robbery) {
this.robbery = robbery;
}
public int getAssault() {
return assault;
}
public void setAssault(int assault) {
this.assault = assault;
}
public int getBurglary() {
return burglary;
}
public void setBurglary(int burglary) {
this.burglary = burglary;
}
public int getLarceny() {
return larceny;
}
public void setLarceny(int larceny) {
this.larceny = larceny;
}
public int getMotorTheft() {
return motorTheft;
}
public void setMotorTheft(int motorTheft) {
this.motorTheft = motorTheft;
}
public static void showAllMurderDetails() {
for (CityCrime crime : StartApp.crimes) {
System.out.println("Crime: City= " + crime.getCity() + ", Murder= " + crime.getMurder());
}
System.out.println();
}
public static int showAllViolentCrimes() {
int total = 0;
for(CityCrime crime : StartApp.crimes) {
total=total+crime.getMurder();
total=total+crime.getRobbery();
total=total+crime.getAssault();
}
System.out.println("Total of violent crimes: " + total);
return total;
}
public static int getPossessionCrimes() {
int total=0;
for (CityCrime crime : StartApp.crimes) {
total = total + crime.getBurglary();
total = total + crime.getLarceny();
total = total + crime.getMotorTheft();
}
System.out.println("Total of possession crimes: " + total);
return total;
}
}
The CityCrime ArrayList gets popular from another csv file:
public static void readCrimeData() {
File file = new File("crimeUSA.csv");
FileReader fileReader;
BufferedReader bufferedReader;
String crimeInfo;
String[] stats;
try {
fileReader = new FileReader(file);
bufferedReader = new BufferedReader(fileReader);
crimeInfo = bufferedReader.readLine();
crimeInfo = bufferedReader.readLine();
do {
CityCrime crime = new CityCrime(); // Default constructor
stats = crimeInfo.split(",");
{
if (stats[0] != null) {
crime.setCity(stats[0]);
}
if (stats[1] != null) {
crime.setState(stats[1]);
}
if (stats[2] != null) {
if (Integer.parseInt(stats[2]) >= 0) {
crime.setPopulation(Integer.parseInt(stats[2]));
}
}
if (stats[3] != null) {
if (Integer.parseInt(stats[3]) >= 0) {
crime.setMurder(Integer.parseInt(stats[3]));
}
}
if (stats[4] != null) {
if (Integer.parseInt(stats[4]) >= 0) {
crime.setRobbery(Integer.parseInt(stats[4]));
}
}
if (stats[5] != null) {
if (Integer.parseInt(stats[5]) >= 0) {
crime.setAssault(Integer.parseInt(stats[5]));
}
}
if (stats[6] != null) {
if (Integer.parseInt(stats[6]) >= 0) {
crime.setBurglary(Integer.parseInt(stats[6]));
}
}
if (stats[7] != null) {
if (Integer.parseInt(stats[7]) >= 0) {
crime.setLarceny(Integer.parseInt(stats[7]));
}
}
if (stats[8] != null) {
if (Integer.parseInt(stats[8]) >= 0) {
crime.setMotorTheft(Integer.parseInt(stats[8]));
}
}
crime.setTotalCrimes(Integer.parseInt(stats[3]), Integer.parseInt(stats[4]), Integer.parseInt(stats[5]), Integer.parseInt(stats[6]), Integer.parseInt(stats[7]), Integer.parseInt(stats[8]));
}
crimes.add(crime);
System.out.println(crime);
crimeInfo = bufferedReader.readLine();
} while (crimeInfo != null);
fileReader.close();
bufferedReader.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} catch (NumberFormatException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}
I want to sort the array list and output to the csv file the list of robberies in descending order with the corresponding city. So far I have got the following, but I am stuck and not sure if going in the right direction. I'm relatively new to Java as you can probably tell so would appreciate it in as simple terms as can be:
public static void writeToFile() throws IOException {
File csvFile = new File("Robbery.csv");
FileWriter fileWriter = new FileWriter(csvFile);
ArrayList<Integer> robberyRates = new ArrayList();
for(CityCrime crime : crimes) {
robberyRates.add(crime.getRobbery());
}
Collections.sort(robberyRates);
}
The desired output will be for example:
Robbery,City
23511,New York
15863,Chicago
14353,Los Angeles
11371,Houston
10971,Philadelphia
etc…
Your help is appreciated. I have searched any page I can find on Google, but all I see from other example is writing to the csv from a set String ArrayList where they know the number of lines etc. Thankyou
You can try something like this:
public static void writeToFile() throws IOException {
File csvFile = new File("Robbery.csv");
try(FileWriter fileWriter = new FileWriter(csvFile)) { // try-with-resources to be sure that fileWriter will be closed at end
StringBuilder stringBuilder = new StringBuilder(); // Betther than String for multiple concatenation
crimes.sort(Comparator.comparingInt(CityCrime::getRobbery).reversed()); // I want to compare according to getRobbery, as Int, in reversed order
stringBuilder.append("Robbery")
.append(',')
.append("City")
.append(System.lineSeparator()); // To get new line character according to OS
for (final var crime : crimes)
stringBuilder.append(crime.getRobbery())
.append(',')
.append(crime.getCity())
.append(System.lineSeparator());
fileWriter.write(stringBuilder.toString());
}
}
If you are stuck because you can't figure out how to write a list, convert your list into a String and print the String instead.
I commented the piece of code, if you have any questions, don't hesitate.
Another solution is to use specific CSV parser library, OpenCSV for example.
It makes it easier to read and write CSV file.
Here a tutorial about OpenCSV:
https://mkyong.com/java/how-to-read-and-parse-csv-file-in-java/
I want to read out a file on a seperate thread and after that I want to move the file to a new directory but the compiler keeps telling me that I can't move the file because it is used by another process. I have checked it multiple times and my readers are closed and I used the join() function to wait until the readThread has finished what could this be?
public class CallLogReader extends Thread {
private Path path;
private LinkedList<CallLog> callLogs;
public CallLogReader(Path path){
setPath(path);
callLogs = new LinkedList<>();
}
public Path getPath() {
return path;
}
public void setPath(Path path) {
this.path = path;
}
public LinkedList<CallLog> getCallLogs() {
return callLogs;
}
#Override
public void run(){
FileReader reader = null;
BufferedReader buffReader = null;
try{
reader = new FileReader(path.toFile());
buffReader = new BufferedReader(reader);
String currentLine = buffReader.readLine();
while(currentLine != null){
String[] dataBlocks = currentLine.split(";");
if(!dataBlocks[7].equals("IGNORE")){
callLogs.add(new CallLog(Integer.parseInt(dataBlocks[0]) ,dataBlocks[1], ConvertStringToDate(dataBlocks[2], dataBlocks[3]), dataBlocks[4], dataBlocks[5], Integer.parseInt(dataBlocks[6]), dataBlocks[7]));
}
currentLine = buffReader.readLine();
}
}
catch(IOException ex){
System.out.println(ex.getMessage());
}
finally{
try{
if(buffReader != null){
buffReader.close();
}
if(reader != null){
reader.close();
}
}
catch(IOException ex){
System.out.println(ex.getMessage());
}
}
}
private LocalDateTime ConvertStringToDate(String dateString,String timeString){
String dateTimeString = dateString + " " + timeString;
DateTimeFormatter formatter = DateTimeFormatter.ofPattern("dd/MM/yyyy HH:mm:ss");
return LocalDateTime.parse(dateTimeString,formatter);
}
public void moveFile(){
Path newPath = Paths.get(path.getParent().getParent().toString() + "\\processed\\" + path.getFileName());
try{
Files.move(path,newPath,StandardCopyOption.REPLACE_EXISTING);
}
catch(IOException ex){
System.out.println(ex.getMessage());
}
}
public static void main(String[] args) {
// TODO Auto-generated method stub
Path path_1 = Paths.get("C:\\Users\\11601037\\Desktop\\resources\\in\\testdata1.csv");
CallLogReader reader_1 = new CallLogReader(path_1);
reader_1.run();
try{
reader_1.join();
}
catch(InterruptedException ex){
System.out.println(ex.getMessage());;
}
reader_1.moveFile();
System.out.println(path_1.getParent().getParent().toString());
}
}
I am working on a personal Java project and learning how to print out data from a text file. My code (as you can see below) prints out the userNameGenerator and personName data perfectly fine but I want it to be printed out from the toString in my Java Class. How can I change my code to print it out from there?
This is how my toString looks like:
#Override
public String toString() {
return userNameGenerator + " -> " + "[" + personName + "]" ;
}
Full code:
import java.util.*;
import java.io.*;
public class Codes {
public static void main(String[] args) {
List<Codes2> personFile = new ArrayList<>();
try {
BufferedReader br = new BufferedReader(new FileReader("person-data.txt"));
String fileRead = br.readLine();
while (fileRead != null) {
String[] personData = fileRead.split(":");
String personName = personData[0];
String userNameGenerator = personData[1];
Codes2 personObj = new Codes2(personName, userNameGenerator);
personFile.add(personObj);
fileRead = br.readLine();
}
br.close();
}
catch (FileNotFoundException ex) {
System.out.println("File not found!");
}
catch (IOException ex) {
System.out.println("An error has occured: " + ex.getMessage());
}
Set<String> newStrSet = new HashSet<>();
for(int i = 0; i < personFile.size(); i++){
String[] regionSplit = personFile.get(i).getUserNameGenerator().split(", ");
for(int j = 0; j < regionSplit.length; j++){
newStrSet.add(regionSplit[j]);
}
}
for (String p: newStrSet) {
System.out.printf("%s -> ", p);
for (Codes2 s: personFile) {
if (s.getUserNameGenerator().contains(p)) {
System.out.printf("%s, ", s.getPersonName());
}
}
System.out.println();
}
}
}
Java Class:
public class Codes2 implements Comparable<Codes2> {
private String personName;
private String userNameGenerator;
public Codes2(String personName, String userNameGenerator) {
this.personName = personName;
this.userNameGenerator = userNameGenerator;
}
public String getPersonName() {
return personName;
}
public String getUserNameGenerator() {
return userNameGenerator;
}
#Override
public int compareTo(Codes2 o) {
return getUserNameGenerator().compareTo(o.getUserNameGenerator());
}
public int compare(Object lOCR1, Object lOCR2) {
return ((Codes2)lOCR1).userNameGenerator
.compareTo(((Codes2)lOCR2).userNameGenerator);
}
#Override
public String toString() {
return userNameGenerator + " -> " + "[" + personName + "]" ;
}
}
Everything looks right in your code.
I think you should just call the method when you are trying to print it out:
for (Codes2 s: personFile) {
if (s.getUserNameGenerator().contains(p)) {
System.out.printf("%s, ", s.toString());
}
}
This follows the fact that the class that prints out the object is not so closely coupled with the class that hold the data.
Try:
#Override
public String toString() {
return String.format("%s -> [%s]",this.userNameGenerator,this.personName);
}
I need to parse the below JSON content. Currently I have stored it inflat file and reading it. I have given the sample POJO classes which are created and the code which I tried below.
Tried two different approach and both are giving the following error
Exception in thread "main" com.google.gson.JsonSyntaxException: java.lang.IllegalStateException: Expected BEGIN_ARRAY but was BEGIN_OBJECT at line 1 column 3 path $
Json file
{
"DeviceCommon": {
"ASIdentifier": "123",
"DatadeliveyMechanism": "notify",
"MobileOriginatorCallbackReference": {
"url": "http://application.example.com/inbound/notifications/modatanotification/"
},
"AccessiblityCallbackReference": {
"url": "http://application.example.com/inbound/notifications/accessibilitystatusnotification"
}
},
"DeviceList": [{
"ExternalIdentifer": "123456#mydomain.com",
"msisdn": "123456",
"senderName": "Device1",
"MobileOriginatorCallbackReference": {
"notifyURL": "http://application.example.com/inbound/notifications/modatanotification/"
},
"ConfigurationResultCallbackReference": {
"notifyURL": "http://application.example.com/inbound/notifications/configurationResult"
},
"ASreferenceID": "AS000001",
"NIDDduration": "1d"
}]
}
POJO classes:
Note: I have mentioned only two classes here.
package com.As.jsonmodel.configrequest;
import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
#JsonIgnoreProperties(ignoreUnknown = true)
public class ConfigurationRequest
{
private DeviceList[] DeviceList;
private DeviceCommon DeviceCommon;
public DeviceList[] getDeviceList ()
{
return DeviceList;
}
public void setDeviceList (DeviceList[] DeviceList)
{
this.DeviceList = DeviceList;
}
public DeviceCommon getDeviceCommon ()
{
return DeviceCommon;
}
public void setDeviceCommon (DeviceCommon DeviceCommon)
{
this.DeviceCommon = DeviceCommon;
}
#Override
public String toString()
{
return "ClassPojo [DeviceList = "+DeviceList+", DeviceCommon = "+DeviceCommon+"]";
}
}
package com.As.jsonmodel.configrequest;
public class DeviceList
{
private MobileOriginatorCallbackReference MobileOriginatorCallbackReference;
private String NIDDduration;
private String ASreferenceID;
private String senderName;
private String ExternalIdentifer;
private String msisdn;
private ConfigurationResultCallbackReference ConfigurationResultCallbackReference;
public MobileOriginatorCallbackReference getMobileOriginatorCallbackReference ()
{
return MobileOriginatorCallbackReference;
}
public void setMobileOriginatorCallbackReference (MobileOriginatorCallbackReference MobileOriginatorCallbackReference)
{
this.MobileOriginatorCallbackReference = MobileOriginatorCallbackReference;
}
public String getNIDDduration ()
{
return NIDDduration;
}
public void setNIDDduration (String NIDDduration)
{
this.NIDDduration = NIDDduration;
}
public String getASreferenceID ()
{
return ASreferenceID;
}
public void setASreferenceID (String ASreferenceID)
{
this.ASreferenceID = ASreferenceID;
}
public String getSenderName ()
{
return senderName;
}
public void setSenderName (String senderName)
{
this.senderName = senderName;
}
public String getExternalIdentifer ()
{
return ExternalIdentifer;
}
public void setExternalIdentifer (String ExternalIdentifer)
{
this.ExternalIdentifer = ExternalIdentifer;
}
public String getMsisdn ()
{
return msisdn;
}
public void setMsisdn (String msisdn)
{
this.msisdn = msisdn;
}
public ConfigurationResultCallbackReference getConfigurationResultCallbackReference ()
{
return ConfigurationResultCallbackReference;
}
public void setConfigurationResultCallbackReference (ConfigurationResultCallbackReference ConfigurationResultCallbackReference)
{
this.ConfigurationResultCallbackReference = ConfigurationResultCallbackReference;
}
#Override
public String toString()
{
return "ClassPojo [MobileOriginatorCallbackReference = "+MobileOriginatorCallbackReference+", NIDD duration = "+NIDDduration+", AS referenceID = "+ASreferenceID+", senderName = "+senderName+", ExternalIdentifer = "+ExternalIdentifer+", msisdn = "+msisdn+", ConfigurationResultCallbackReference = "+ConfigurationResultCallbackReference+"]";
}
}
Json Reader
Approach1:
BufferedReader br = null;
try {
br = new BufferedReader(
new FileReader("/home/raj/apache-tomcat-8.0.3/webapps/file.json"));
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
JsonReader jsonReader = new JsonReader(new FileReader("/home/raj/apache-tomcat-8.0.3/webapps/file.json"));
jsonReader.beginObject();
while (jsonReader.hasNext()) {
String name = jsonReader.nextName();
if (name.equals("DeviceCommon")) {
readApp(jsonReader);
}
}
jsonReader.endObject();
jsonReader.close();
}
public static void readApp(JsonReader jsonReader) throws IOException{
jsonReader.beginObject();
while (jsonReader.hasNext()) {
String name = jsonReader.nextName();
System.out.println(name);
if (name.contains("ASIdentifier")){
jsonReader.beginObject();
while (jsonReader.hasNext()) {
String n = jsonReader.nextName();
if (n.equals("MobileOriginatorCallbackReference")){
System.out.println(jsonReader.nextString());
}
if (n.equals("AccessiblityCallbackReference")){
System.out.println(jsonReader.nextInt());
}
if (n.equals("DeviceList")){
jsonReader.beginArray();
while (jsonReader.hasNext()) {
System.out.println(jsonReader.nextString());
}
jsonReader.endArray();
}
}
jsonReader.endObject();
}
}
jsonReader.endObject();
}
// TODO Auto-generated method stub
Aproach2:
Gson gson = new Gson();
DeviceList [] myTypes = gson.fromJson(new FileReader("/home/raj/apache-tomcat-8.0.3/webapps/file.json"), DeviceList[].class);
System.out.println(gson.toJson(myTypes));
Any pointers on how to parse this file will be helpful.
Here's how to do it with Gson:
import java.io.FileReader;
import java.util.Arrays;
import com.google.gson.Gson;
import com.google.gson.annotations.SerializedName;
public class Main {
public static void main(String[] args) throws Exception {
Data data = new Gson().fromJson(new FileReader("data.json"), Data.class);
System.out.println(data);
}
}
class Data {
#SerializedName("DeviceCommon")
DeviceCommon deviceCommon;
#SerializedName("DeviceList")
DeviceListEntry[] deviceList;
#Override
public String toString() {
return "Data{" +
"\n deviceCommon=" + deviceCommon +
"\n deviceList=" + Arrays.toString(deviceList) +
"\n}";
}
}
class DeviceCommon {
#SerializedName("ASIdentifier")
String asIdentifier;
#SerializedName("DatadeliveyMechanism")
String datadeliveyMechanism;
#SerializedName("MobileOriginatorCallbackReference")
Url mobileOriginatorCallbackReference;
#SerializedName("AccessiblityCallbackReference")
Url accessiblityCallbackReference;
#Override
public String toString() {
return "DeviceCommon{" +
"\n asIdentifier='" + asIdentifier + '\'' +
"\n datadeliveyMechanism='" + datadeliveyMechanism + '\'' +
"\n mobileOriginatorCallbackReference=" + mobileOriginatorCallbackReference +
"\n accessiblityCallbackReference=" + accessiblityCallbackReference +
"\n }";
}
}
class DeviceListEntry {
#SerializedName("ExternalIdentifer")
String externalIdentifer;
String msisdn;
String senderName;
#SerializedName("MobileOriginatorCallbackReference")
NotifyUrl mobileOriginatorCallbackReference;
#SerializedName("ConfigurationResultCallbackReference")
NotifyUrl configurationResultCallbackReference;
#SerializedName("ASreferenceID")
String asReferenceID;
#SerializedName("NIDDduration")
String nidDduration;
#Override
public String toString() {
return "DeviceListEntry{" +
"\n externalIdentifer='" + externalIdentifer + '\'' +
"\n msisdn='" + msisdn + '\'' +
"\n senderName='" + senderName + '\'' +
"\n mobileOriginatorCallbackReference=" + mobileOriginatorCallbackReference +
"\n configurationResultCallbackReference=" + configurationResultCallbackReference +
"\n asReferenceID='" + asReferenceID + '\'' +
"\n nidDduration='" + nidDduration + '\'' +
"\n }";
}
}
class Url {
String url;
#Override
public String toString() {
return url;
}
}
class NotifyUrl {
String notifyURL;
#Override
public String toString() {
return notifyURL;
}
}
Running Main will result in the following output:
Data{
deviceCommon=DeviceCommon{
asIdentifier='123'
datadeliveyMechanism='notify'
mobileOriginatorCallbackReference=http://application.example.com/inbound/notifications/modatanotification/
accessiblityCallbackReference=http://application.example.com/inbound/notifications/accessibilitystatusnotification
}
deviceList=[DeviceListEntry{
externalIdentifer='123456#mydomain.com'
msisdn='123456'
senderName='Device1'
mobileOriginatorCallbackReference=http://application.example.com/inbound/notifications/modatanotification/
configurationResultCallbackReference=http://application.example.com/inbound/notifications/configurationResult
asReferenceID='AS000001'
nidDduration='1d'
}]
}
I'm trying to print '1' or '0' in text view if it passes the if statements. I ran it in the debug mode, and it all works, but it is not printing in the text view. How do I fix this I tried a lot of stuff, but I'm still stuck.
public class Readcsv {
private static final String FILE_DIR = "/Users/Me/Downloads";
private static final String FILE_TEXT_NAME = ".csv";
public static void main(String [] args) throws Exception{
PrintWriter writer = new PrintWriter("/users/Me/Documents/Test.txt", "UTF-8");
int i=-1;
BufferedReader br = null;
String line = "";
String cvsSplitBy = ",";
//Find Number of Files
String[] list = new Readcsv().FileCount(FILE_DIR, FILE_TEXT_NAME);
System.out.println("Total Files = " + list.length);
while(i++ < list.length){
System.out.println("Loop Count = " + i);
try {
br = new BufferedReader(new FileReader("/users/Tanuj/Downloads/" + list[i]));
while ((line = br.readLine()) != null) {
// use comma as separator
String[] strRecord = line.split(cvsSplitBy);
if (!strRecord[0].equals("timestampMs")){
int c = Integer.parseInt(strRecord[4]);
int e = Integer.parseInt(strRecord[5]);
if(c>e){
writer.print("1");
}
else{
writer.print("0");
}
break;
}
}
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
if (br != null) {
try {
br.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
} //End of while
writer.close();
} //End of Main
public String[] FileCount(String folder, String ext) {
GenericExtFilter filter = new GenericExtFilter(ext);
File dir = new File(folder);
if(dir.isDirectory()==false){
System.out.println("Directory does not exists : " + FILE_DIR);
return null;
}
// list out all the file name and filter by the extension
String[] list = dir.list((FilenameFilter) filter);
return list;
}
// inner class, generic extension filter
public class GenericExtFilter implements FilenameFilter {
private String ext;
public GenericExtFilter(String ext) {
this.ext = ext;
}
public boolean accept(File dir, String name) {
return (name.endsWith(ext));
}
}
}
have you tryed BufferedWriter?
File file = new File("Test.txt");
FileOutputStream fos = new FileOutputStream(file);
BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(fos));
bw.write("something");
bw.newLine();
bw.close();