Develop Reference

cant count works ad character with pdfbox in java

class ReadPDF {
public void Read() throws IOException {
int amountOfWords = 0;
int amountOfChars = 0;
String sourceCode ="";
try {
PDDocument doc = PDDocument.load(new File("C:\\Users\\ccw\\Desktop\\articles\\RECYCLING-BEHAVIOUR-AMONG-MALAYSIAN-TERTIARY-STUDENTS.pdf"));
String text = new PDFTextStripper().getText(doc);
sourceCode = sourceCode.replace ("-", "").replace (".", "");
while(doc!=null){
String[] words = sourceCode.split(" ");
amountOfWords = amountOfWords + words.length;
for (String word : words) {
amountOfChars = amountOfChars + word.length();
}
}
System.out.println("Amount of Chars is " + amountOfChars);
System.out.println("Amount of Words is " + (amountOfWords + 1));
System.out.println("Average Word Length is "+ (amountOfChars/amountOfWords));
}catch (IOException e) {
System.out.println(e);
}
}
}
I'm trying to count all the words and character in a pdf file by using pdfbox.
But now i getting an error, sourceCode is not initialize

Replace this line sourceCode = sourceCode.replace ("-", "").replace (".", ""); with sourceCode = text.replace ("-", "").replace (".", ""); .and remove the while loop

java save load methods save locations

Hey I am trying to figure out how to get my save / load methods to put the .txt file they generate into a zip and how can I set the location of the file. this is my code so far :
save method - pulls data from the current array list and writes them to the file
public void save(String path) {
ArrayList<String> lines = new ArrayList<String>();
for (int i = 0; i < this.listaKorisnika.size(); i++) {
User korisnik = this.listaKorisnika.get(i);
String ime = korisnik.getIme();
String prezime = korisnik.getPrezime();
LocalDate datum = korisnik.getDatumRodjenja();
DateTimeFormatter dtf = DateTimeFormatter.ofPattern("dd.MM.yyyy.");
String formiraniDatum = dtf.format(datum);
String jmbg = korisnik.getJmbg();
String zanimanjePoSk = korisnik.getZanimanjePoSkoli();
String gdeRadi = korisnik.getGdeRadi();
String bolesti = korisnik.getBolesti();
String alergije = korisnik.getAlergije();
String line = ime + ";" + prezime + ";" + formiraniDatum + ";" + jmbg + ";" + zanimanjePoSk + ";" + gdeRadi
+ ";" + bolesti + ";" + alergije;
lines.add(line);
}
try {
Files.write(Paths.get(path), lines, Charset.defaultCharset(), StandardOpenOption.CREATE,
StandardOpenOption.TRUNCATE_EXISTING, StandardOpenOption.WRITE);
} catch (java.io.IOException e) {
System.out.println("Datoteka " + path + " nije pronađena.");
}
}
// this load method pulls data from the generated .txt file and puts them in memory.
public void load(String path) {
this.listaKorisnika = new ArrayList<User>();
List<String> lines;
try {
lines = Files.readAllLines(Paths.get(path), Charset.defaultCharset());
for (String line : lines) {
String[] attributes = line.split(";");
/*
* String line = ime +";"+ prezime +";"+ formiraniDatum +";"+ jmbg +";"+
* zanimanjePoSk +";"+ gdeRadi +";"+ bolesti +";"+ alergije;
*/
String ime = attributes[0];
String prezime = attributes[1];
String datum = attributes[2];
DateTimeFormatter dtf = DateTimeFormatter.ofPattern("dd.MM.yyyy.");
LocalDate datumZaCuvanje = LocalDate.parse(datum, dtf);
String jmbg = attributes[3];
String zanimanjePoSkoli = attributes[4];
String gdeRadi = attributes[5];
String bolesti = attributes[6];
String Alergije = attributes[7];
User user = new User(ime, prezime, datumZaCuvanje, jmbg, zanimanjePoSkoli, gdeRadi, bolesti, Alergije);
this.listaKorisnika.add(user);
}
} catch (java.io.IOException e) {
System.out.println("Datoteka " + path + " nije pronađena.");
} catch (Exception e) {
System.out.println("Desila se greška pri parsiranju datuma.");
}
}

String replace not working or Im dumb?

I have this:
for (String[] aZkratkyArray1 : zkratkyArray) {
String oldString = " " + aZkratkyArray1[0] + " ";
String firstString = aZkratkyArray1[0] + " ";
String newString = " " + aZkratkyArray1[1] + " ";
System.out.println(newString);
System.out.println(fileContentsSingle);
fileContentsSingle = fileContentsSingle.replaceAll(oldString, newString);
if (fileContentsSingle.startsWith(firstString)) {
fileContentsSingle = aZkratkyArray1[1] + " " + fileContentsSingle.substring(firstString.length(),fileContentsSingle.length());
}
}
fileContentsSingle is just some regular string, aZkratkyArray is array with shortened words, f.e.:
ht, hello there
wru, who are you
So when fileContentsSingle = ht I am robot
it should end up : hello there I am robot
or when fileContentsSingle = I am robot hru
it should end up : I am robot who are you
But when I sysout fileContentsSingle after this iteration, or during it, string is never changed.
I tried both replace and replaceAll, I tried probably everything I could think of.
Where is the mistake?
EDIT:
This is how I import array:
String[][] zkratkyArray;
try {
LineNumberReader lineNumberReader = new LineNumberReader(new FileReader("zkratky.csv"));
lineNumberReader.skip(Long.MAX_VALUE);
int lines = lineNumberReader.getLineNumber();
lineNumberReader.close();
FileReader fileReader = new FileReader("zkratky.csv");
BufferedReader reader = new BufferedReader(fileReader);
zkratkyArray = new String[lines + 1][2];
String line;
int row = 0;
while ((line = reader.readLine()) != null) {
String[] array = line.split(",");
for (int i = 0; i < array.length; i++) {
zkratkyArray[row][i] = array[i];
}
row++;
}
reader.close();
fileReader.close();
} catch (FileNotFoundException e) {
System.out.println("Soubor se zkratkami nenalezen.");
zkratkyArray = new String[0][0];
}

Your code will work correctly for "ht I am robot". If you print fileContentsSingle after your for loop, it will print what you expect it to print:
final String[][] zkratkyArray = new String[2][];
zkratkyArray[0] = new String[] { "ht", "hello there" };
zkratkyArray[1] = new String[] { "wru", "who are you" };
String fileContentsSingle = "ht I am robot";
for (String[] aZkratkyArray1 : zkratkyArray) {
String oldString = " " + aZkratkyArray1[0] + " ";
String firstString = aZkratkyArray1[0] + " ";
String newString = " " + aZkratkyArray1[1] + " ";
fileContentsSingle = fileContentsSingle.replaceAll(oldString, newString);
if (fileContentsSingle.startsWith(firstString)) {
fileContentsSingle = aZkratkyArray1[1] + " "
+ fileContentsSingle.substring(firstString.length(), fileContentsSingle.length());
}
}
System.out.println(fileContentsSingle); // prints "hello there I am robot"
Concerning "I am robot hru", it will not work because "hru" is at the end of the String, and not followed by a space, and the String you are replacing is " hru " (with spaces before and after).
As you don't use regexps, you don't need replaceAll(), and you can use replace() instead.
Using regexps, you can do a more generic solution working everywhere in the line:
final String[][] zkratkyArray = new String[2][];
zkratkyArray[0] = new String[] { "ht", "hello there" };
zkratkyArray[1] = new String[] { "wru", "who are you" };
String fileContentsSingle = "ht I am robot wru";
for (String[] aZkratkyArray1 : zkratkyArray) {
fileContentsSingle = fileContentsSingle.replaceAll("\\b" + Pattern.quote(aZkratkyArray1[0]) + "\\b",
Matcher.quoteReplacement(aZkratkyArray1[1]));
}
System.out.println(fileContentsSingle); // hello there I am robot who are you

I don't think you are using any regex here. You are just reading a suustring and replace it with another one.
Just use the other version which does not use regex:
fileContentsSingle.replace(oldString, newString);

In the end, I found out that I had BOM's in input.csv file.

How to read from a text-file.

I would like to know how can I check for a specific string on a line of a text file, save it in an array, and then move on to the next line of that text file.
For e.g.:
(what he is/ year edition/name/age/profession/number)
competitor 2014 joseph 21 student 20232341
competitor 2013 michael 23 engineer 23425123
As output, it would give me this:
Song Festival'2014
here are the competitors:
Joseph, student of 21 years - 20232341
Song Festival'2013
are the competitors
Michael, engineer of 23 years - 23425123
edit: java language

For this you would use a BufferedReader, you can format things in the text file using the tab (indent) which would be read from the BufferedReader as '\t' I'll write an example for you in a moment.
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
public class StackoverflowExample {
private static final int INFORMATION_CAP = 100;
private static String[][] INFORMATION = new String[INFORMATION_CAP][INFORMATION_CAP];
public StackoverflowExample() {
String currentLine;
String[] textData;
int lineID = 0;
boolean endOfFile = false;
try {
BufferedReader reader = new BufferedReader(new FileReader("textfile.txt"));
currentLine = reader.readLine();
while(!endOfFile && currentLine != null) {
currentLine = currentLine.trim();
textData = currentLine.split("\\t");
String userType = textData[0];
String year = textData[1];
String name = textData[2];
String age = textData[3];
String profession = textData[4];
String number = textData[5];
INFORMATION[lineID] = new String[] { userType, year, name, age, profession, number };
lineID++;
currentLine = reader.readLine();
}
} catch (IOException e) {
e.printStackTrace();
}
}
public static void main(String[] args) {
new StackoverflowExample();
for(int i = 0; i < INFORMATION.length; i++) {
System.out.println("Type: " + INFORMATION[i][0] +
"year: " + INFORMATION[i][1] +
"name: " + INFORMATION[i][2] +
"age: " + INFORMATION[i][3] +
"profession: " + INFORMATION[i][4] +
"number: " + INFORMATION[i][5]);
}
}
}
Create a text file called "textfile.txt" in your projects main directory, and format it like this
type(tab)year(tab)name(tab)age(tab)profession(tab)number(newline)

How to Manipulate List to String and print in seperate row

I am trying to export the 4 columns with the below code.the last column organization is a List.
String appname = "abc";
String path = "//home/exportfile//";
String filename = path + "ApplicationExport-" + appname + ".txt";
String ret = "false";
QueryOptions ops = new QueryOptions();
Filter[] filters = new Filter[1];
filters[0] = Filter.eq("application.name", appname);
ops.add(filters);
List props = new ArrayList();
props.add("identity.name");
// Do search
Iterator it = context.search(Link.class, ops, props);
// Build file and export header row
BufferedWriter out = new BufferedWriter(new FileWriter(filename));
out.write("IdentityName,UserName,WorkforceID,Organization");
out.newLine();
// Iterate Search Results
if (it != null) {
while (it.hasNext()) {
// Get link and create object
Object[] record = it.next();
String identityName = (String) record[0];
Identity user = (Identity) context.getObject(Identity.class, identityName);
// Get Identity attributes for export
String workforceid = (String) user.getAttribute("workforceID");
// Get application attributes for export
String userid = "";
List links = user.getLinks();
if (links != null) {
Iterator lit = links.iterator();
while (lit.hasNext()) {
Link l = lit.next();
String lname = l.getApplicationName();
if (lname.equalsIgnoreCase(appname)) {
userid = (String) l.getAttribute("User Name");
List organizations = l.getAttribute("Organization");
StringBuilder sb = new StringBuilder();
String listItemsSeparator = ",";
for (Object organization : organizations) {
sb.append(organization.toString());
sb.append(listItemsSeparator);
}
org = sb.toString().trim();
}
}
}
// Output file
out.write(identityName + "," + userid + "," + workforceid + "," + org);
out.newLine();
out.flush();
}
ret = "true";
}
// Close file and return
out.close();
return ret;
the output of the above code will be.for ex:
IdentityName,UserName,WorkforceID,Organization
dthomas,dthomas001,12345,Finance,HR
How do i get the output in below fashion
IdentityName,UserName,WorkforceID,Organization
dthomas,dthomas001,12345,Finance
dthomas,dthomas001,12345,HR
what and where i need to change the code?

You'll have to write one line to the file for each organization. So, basically, do not concatenate all organizations for a user with the string builder and move the output statements into the for loop that iterates through the organizations.
But it's difficult to provide a working example, because you're code you've shown doesn't compile yet...
This should bring you somewhat closer to the solution:
if (links != null) {
Iterator lit = links.iterator();
while (lit.hasNext()) {
Link l = lit.next();
String lname = l.getApplicationName();
if (lname.equalsIgnoreCase(appname)) {
userid = (String) l.getAttribute("User Name");
List organizations = l.getAttribute("Organization");
for (Object organization : organizations) {
// Output file
out.write(identityName + "," + userid + "," + workforceid + "," + organization);
out.newLine();
out.flush();
}
}
}
}

Remove this innermost for block and associated variables:
StringBuilder sb = new StringBuilder();
for (Object organization : organizations)
{
sb.append(organization.toString());
sb.append(listItemsSeparator);
}
org = sb.toString().trim();
Move the declaration of organizations outside the if (it != null) { block:
// Get application attributes for export
String userid = "";
List organizations = null;
List links = user.getLinks();
if (it != null)
{
Iterator lit = links.iterator();
while (lit.hasNext())
{
Link l = lit.next();
String lname = l.getApplicationName();
if (lname.equalsIgnoreCase(appname))
{
userid = (String) l.getAttribute("User Name");
organizations = l.getAttribute("Organization");
And then change this file output code:
// Output file
out.write(identityName + "," + userid + "," + workforceid + "," + org);
out.newLine();
To this:
// Output file
for (Object organization : organizations)
{
out.write(identityName + "," + userid + "," + workforceid + "," + organization.toString());
out.newLine();
}