デバッグエラーを表示するにはどうすればよいですか？

Question

私はこの読み込み方法がわからないというデバッグエラーがあります。テキストフィールドの入力が整数に解析されていないという事実と関係していると思います。

状況によっては、2つのスレッドを使用してファイルを書き込むGUIプログラムを作成しています。各スレッドは、指定されたメッセージをユーザーが選択した特定のファイルに特定の回数だけ書き込みます。たとえば、スレッド1はabc.txtに「Hi」を10回書き込むことができ、スレッド2は「Bye」を同じファイルに10回書き込むことができます。私は参照のためのデバッグの下に私のGUIコードを持っています。前もって感謝します ：）。

Exception in thread "AWT-EventQueue-0" java.lang.NumberFormatException: For input string: "javax.swing.JTextField[,506,5,92x20,layout=javax.swing.plaf.basic.BasicTextUI$UpdateHandler,alignmentX=0.0,alignmentY=0.0,border=javax.swing.plaf.BorderUIResource$CompoundBorderUIResource@7ec75020,flags=296,maximumSize=,minimumSize=,preferredSize=,caretColor=sun.swing.PrintColorUIResource[r=51,g=51,b=51],disabledTextColor=javax.swing.plaf.ColorUIResource[r=184,g=207,b=229],editable=true,margin=javax.swing.plaf.InsetsUIResource[top=0,left=0,bottom=0,right=0],selectedTextColor=sun.swing.PrintColorUIResource[r=51,g=51,b=51],selectionColor=javax.swing.plaf.ColorUIResource[r=184,g=207,b=229],columns=8,columnWidth=11,command=,horizontalAlignment=LEADING]" 
at java.lang.NumberFormatException.forInputString(Unknown Source) 
at java.lang.Integer.parseInt(Unknown Source) 
at java.lang.Integer.parseInt(Unknown Source) 
at assignment11.JFrameExt$1.actionPerformed(JFrameExt.java:107) 
at javax.swing.AbstractButton.fireActionPerformed(Unknown Source) 
at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source) 
at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source) 
at javax.swing.DefaultButtonModel.setPressed(Unknown Source) 
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source) 
at java.awt.Component.processMouseEvent(Unknown Source) 
at javax.swing.JComponent.processMouseEvent(Unknown Source) 
at java.awt.Component.processEvent(Unknown Source) 
at java.awt.Container.processEvent(Unknown Source) 
at java.awt.Component.dispatchEventImpl(Unknown Source) 
at java.awt.Container.dispatchEventImpl(Unknown Source) 
at java.awt.Component.dispatchEvent(Unknown Source) 
at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source) 
at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source) 
at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source) 
at java.awt.Container.dispatchEventImpl(Unknown Source) 
at java.awt.Window.dispatchEventImpl(Unknown Source) 
at java.awt.Component.dispatchEvent(Unknown Source) 
at java.awt.EventQueue.dispatchEventImpl(Unknown Source) 
at java.awt.EventQueue.access$500(Unknown Source) 
at java.awt.EventQueue$3.run(Unknown Source) 
at java.awt.EventQueue$3.run(Unknown Source) 
at java.security.AccessController.doPrivileged(Native Method) 
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source) 
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source) 
at java.awt.EventQueue$4.run(Unknown Source) 
at java.awt.EventQueue$4.run(Unknown Source) 
at java.security.AccessController.doPrivileged(Native Method) 
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source) 
at java.awt.EventQueue.dispatchEvent(Unknown Source) 
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source) 
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source) 
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source) 
at java.awt.EventDispatchThread.pumpEvents(Unknown Source) 
at java.awt.EventDispatchThread.pumpEvents(Unknown Source) 
at java.awt.EventDispatchThread.run(Unknown Source) 

GUIコード：

// GUI components 
private JFrame main; 
private JPanel topPane; 
private JPanel midPane; 
private JPanel botPane; 
private JLabel tmsg1; 
private JLabel tmsg2; 
private JLabel tcount; 
private JLabel tfname; 
private JTextField msg1; 
private JTextField msg2; 
private JTextField count; 
private JTextField fName; 
private JButton write; 
private JButton sWrite; 
private JButton cWrite; 
private JButton display; 
private JButton clear; 
private JTextArea stuff; 
private JScrollPane scroll; 

// local variables 
private String message1; 
private String message2; 
private String fileName; 
private int vCount; 

public JFrameExt() { 

    main = new JFrame(); 
    topPane = new JPanel(); 
    midPane = new JPanel(); 
    botPane = new JPanel(); 

    // creating components 
    tmsg1 = new JLabel("Msg 1:"); 
    tmsg2 = new JLabel("Msg 2:"); 
    tcount = new JLabel("Count:"); 
    tfname = new JLabel("File Name:"); 
    msg1 = new JTextField(8); 
    msg2 = new JTextField(8); 
    count = new JTextField(8); 
    fName = new JTextField(10); 
    write = new JButton("Write"); 
    sWrite = new JButton("Sync Write"); 
    cWrite = new JButton("Coop Write"); 
    display = new JButton("Display"); 
    clear = new JButton("Clear"); 
    stuff = new JTextArea(45, 70); 
    scroll = new JScrollPane(stuff); 

    stuff.setEditable(false); 
    scroll.setVerticalScrollBarPolicy(ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS); 

    // adding components 
    main.add(topPane, BorderLayout.PAGE_START); 
    main.add(midPane, BorderLayout.CENTER); 
    main.add(botPane, BorderLayout.PAGE_END); 

    topPane.add(tmsg1); 
    topPane.add(msg1); 
    topPane.add(tmsg2); 
    topPane.add(msg2); 
    topPane.add(tcount); 
    topPane.add(count); 
    topPane.add(tfname); 
    topPane.add(fName); 
    midPane.add(scroll); 
    botPane.add(write); 
    botPane.add(sWrite); 
    botPane.add(cWrite); 
    botPane.add(display); 
    botPane.add(clear); 

    // changing colors 
    topPane.setBackground(Color.RED); 
    midPane.setBackground(Color.CYAN); 
    botPane.setBackground(Color.GREEN); 

    // setting sizes 
    main.setSize(1000, 900); 

    // setting main jFrame parameters 
    main.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 
    main.setLocationRelativeTo(null); 
    ; 
    main.setVisible(true); 

    // write ActionListener 
    write.addActionListener(new ActionListener() { 
     public void actionPerformed(ActionEvent arg0) { 
      message1 = msg1.getText().toString(); 
      message2 = msg2.getText().toString(); 
      fileName = fName.getText().toString(); 
      vCount = Integer.parseInt(count.getText().toString().trim()); 

      NoSyncRunnable noSync1 = new NoSyncRunnable(message1, fileName, vCount); 
      NoSyncRunnable noSync2 = new NoSyncRunnable(message2, fileName, vCount); 
      Thread t1 = new Thread(noSync1); 
      Thread t2 = new Thread(noSync2); 
      t1.start(); 
      t2.start(); 
     } 
    }); 

    // sWrite ActionListener 
    sWrite.addActionListener(new ActionListener() { 
     public void actionPerformed(ActionEvent arg0) { 
      message1 = msg1.toString(); 
      message2 = msg2.toString(); 
      fileName = fName.toString(); 
      vCount = Integer.parseInt(count.toString()); 
      Object obj = new Object(); 

      CompSyncRunnable compSync1 = new CompSyncRunnable(message1, fileName, vCount, obj); 
      CompSyncRunnable compSync2 = new CompSyncRunnable(message2, fileName, vCount, obj); 
      Thread t1 = new Thread(compSync1); 
      Thread t2 = new Thread(compSync2); 
      t1.start(); 
      t2.start(); 
     } 
    }); 

    // cWrite ActionListener 
    cWrite.addActionListener(new ActionListener() { 
     public void actionPerformed(ActionEvent arg0) { 
      message1 = msg1.toString(); 
      message2 = msg2.toString(); 
      fileName = fName.toString(); 
      vCount = Integer.parseInt(count.toString()); 
      Object obj = new Object(); 

      CoopSyncRunnable compSync1 = new CoopSyncRunnable(message1, fileName, vCount, obj); 
      CoopSyncRunnable compSync2 = new CoopSyncRunnable(message2, fileName, vCount, obj); 
      Thread t1 = new Thread(compSync1); 
      Thread t2 = new Thread(compSync2); 
      t1.start(); 
      t2.start(); 
     } 
    }); 

    display.addActionListener(new ActionListener() { 
     public void actionPerformed(ActionEvent e) { 
      try { 
       FileReader reader = new FileReader(fileName); 
       BufferedReader br = new BufferedReader(reader); 
       stuff.read(br, null); 
       br.close(); 
       stuff.requestFocus(); 
      } 

      catch (Exception e2) { 
       System.out.println(e2); 
      } 
     } 
    }); 

    clear.addActionListener(new ActionListener() { 
     public void actionPerformed(ActionEvent arg0) { 
      msg1.setText(""); 
      msg2.setText(""); 
      count.setText(""); 
      fName.setText(""); 
      stuff.setText(""); 
     } 
    }); 
} 

Answer 1

エラーログを見ると、我々はそれが数

を表していないとき Stringが数値に変換されて、それは NumberFormatExceptionだと見ることができます

Exception in thread "AWT-EventQueue-0" java.lang.NumberFormatException: For input string: [...] 

問題のStringが最初の行のエラーログに表示されます

[...] NumberFormatException: For input string: "javax.swing.JTextField[,506,5,92x20,layout=javax.swing.plaf.basic.BasicTextUI$UpdateHandler,alignmentX=0.0,alignmentY=0.0,border=javax.swing.plaf.BorderUIResource$CompoundBorderUIResource@7ec75020,flags=296,maximumSize=,minimumSize=,preferredSize=,caretColor=sun.swing.PrintColorUIResource[r=51,g=51,b=51],disabledTextColor=javax.swing.plaf.ColorUIResource[r=184,g=207,b=229],editable=true,margin=javax.swing.plaf.InsetsUIResource[top=0,left=0,bottom=0,right=0],selectedTextColor=sun.swing.PrintColorUIResource[r=51,g=51,b=51],selectionColor=javax.swing.plaf.ColorUIResource[r=184,g=207,b=229],columns=8,columnWidth=11,command=,horizontalAlignment=LEADING]" 

あなたが遠く、我々はあなたのコードはライン107で何かと呼ばれる参照ログで探し番号

にJTextFieldのString表現を変換しようとしているように見えるようjavax.swing.JTextField[,506,5,92x20,layout=...最初の数ビット、それは試してみましたあなたのコードを見てみるとInteger.parseInt()

at java.lang.Integer.parseInt(Unknown Source) 
at assignment11.JFrameExt$1.actionPerformed(JFrameExt.java:107) 

を呼び出すために、我々は問題のある行を見つけることができます

vCount = Integer.parseInt(count.toString()); 

countがJTextFieldで、（最初の行は、それは整数を解析できなかったことを語っている、そして解析しようとしたことをあなたに文字列を語っだとあなたの代わりにJTextField.getText()