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Thread: "Error cannot find symbol" "throws BadLocationException"

  1. #1
    Junior Member
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    Default "Error cannot find symbol" "throws BadLocationException"

    I am getting the error that it is the thread title when running this code:

    void printLines (JTextArea ta) {  
            String temp = content.get(0);    
            String [] splitter = temp.replaceAll("[.,?!:;/]", "").split(" ");  
            ta.append ("O conteudo do arquivo e: ");  
            for (int k=0; k<splitter.length; k++) {   
              if (splitter[k].equals ("bonita")) {  
                //ta.append("B*O*N*I*T*A");  
                Highlighter hilit = new DefaultHighlighter();  
                Highlighter.HighlightPainter painter = new DefaultHighlighter.DefaultHighlightPainter(Color.YELLOW);  
                hilit.addHighlight(0, 5, painter);  
              }    
              ta.append (splitter[k] + " ");  
            }  
            ta.append ("\n");   
          }


    The error began to show up when I added this three lines related to the Highlighter. I think it might be related to the index that I am passing to addHighlight but I am not sure.

    I made I self-contained version of the error here:
    import javax.swing.*;
    import javax.swing.text.*;
    import java.awt.*;
    import java.awt.event.*;
     
    public class Main {
      public static void main (String [] args) throws Exception {
        JFrame jframe = new JFrame ();
        JTextArea ta = new JTextArea(20,40); 
        JScrollPane sp = new JScrollPane (ta);
        jframe.setVisible (true);  
        jframe.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 
        jframe.setLayout(new FlowLayout()); 
        jframe.add(sp);  
        jframe.pack(); 
        String temp = "Test1 Test2 bonita Test3";    
        String [] splitter = temp.replaceAll("[.,?!:;/]", "").split(" ");  
        ta.append ("O conteudo do arquivo e: ");  
        for (int k=0; k<splitter.length; k++) {   
          if (splitter[k].equals ("bonita")) {  
            //ta.append("B*O*N*I*T*A");  
            Highlighter hilit = new DefaultHighlighter();  
            Highlighter.HighlightPainter painter = new DefaultHighlighter.DefaultHighlightPainter(Color.YELLOW);  
            hilit.addHighlight(0, 5, painter);  
          }    
          ta.append (splitter[k] + " ");  
        }  
        ta.append ("\n");   
      }   
    }

    But with this code I don't get the same error.....what I am getting now it is a nullPointerException in line 24 the
    hilit.addHighlight(0, 5, painter);
    one
    The frame is created shows the two first words before generating the error.

    Anyone has an idea about what can be?

    I also would appreciate if someone can provide me a few tips, links or whatever about how I can advance in text using the keyboard. In another words, if I press right it advances until a certain occurrence of a certain word, then if I press again, it advances to the next one until I reach the last occurrence of a word.


  2. #2
    Member Darryl.Burke's Avatar
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    Default Re: "Error cannot find symbol" "throws BadLocationException"

    This thread has been cross posted here:

    http://www.java-forums.org/new-java/79716-error-cannot-find-symbol-throws-badlocationexception.html
    http://www.coderanch.com/t/614805/GUI/java/Error-find-symbol-throws-BadLocationException

    Although cross posting is allowed, for everyone's benefit, please read:

    Java Programming Forums Cross Posting Rules

    The Problems With Cross Posting


  3. The Following User Says Thank You to Darryl.Burke For This Useful Post:

    jps (July 1st, 2013)

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