java.lang.UnsupportedOperationException çözemiyorum: Henüz desteklenmiyor istisnası

Question

Aşağıda verilen programlarda, "a" üzerinde eylemlistesini uygulamıştım. Bu sayede "H" tuşunda yeni bir olay meydana geldiğinde, yeni koordinatlar sorulmalı ama

java.lang.UnsupportedOperationException alıyorum: desteklenen henüz istisna

ben buna önerilerinizi takdir ederiz. İki sınıfa dahil oldum.

// class:TextEditor.java 

import java.awt.event.ActionListener; 
import java.awt.*; 
import java.awt.event.*; 
import java.io.*; 
import javax.swing.*; 
import static javax.swing.JFrame.EXIT_ON_CLOSE; 
import javax.swing.text.*; 

public class TextEditor extends JFrame { 
static int fn=0; 
private JTextArea area = new JTextArea(20,120); 
//TextEditor frm = new TextEditor(10,10); 

    private JFileChooser dialog = new JFileChooser(System.getProperty("user.dir")); 
    private String currentFile = "Untitled"; 
    private boolean changed = false; 
     private JButton a = new JButton("H"); 
     private JButton b = new JButton("HE"); 
     private JButton c = new JButton("O"); 

public TextEditor() { 
       setLayout(new FlowLayout()); 
     area.setFont(new Font("Monospaced",Font.PLAIN,12)); 
     JScrollPane scroll = new JScrollPane(area,JScrollPane.VERTICAL_SCROLLBAR_ALWAYS,JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS); 
     add(scroll,BorderLayout.CENTER); 
       add(a);// add the button to the JFrame 
       add(b); 
       add(c); 
     JMenuBar JMB = new JMenuBar(); 
     setJMenuBar(JMB); 
     JMenu file = new JMenu("File"); 
     JMenu edit = new JMenu("Edit"); 
     JMB.add(file); JMB.add(edit); 

       a.addActionListener(new ActionListener() { 
       public void actionPerformed(ActionEvent e) { 
        CircleComponent a1 = new CircleComponent(); 
       a1.a2(); 
       selectionButtonPressed(); 
        } 

        private void selectionButtonPressed() { 
         throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates. 
        } 
       }); 
       file.add(New); 
       file.add(Open); 
       file.add(Save); 
       file.add(SaveAs); 
     file.add(Quit); 
       file.addSeparator(); 

     for(int i=0; i<4; i++) 
      file.getItem(i).setIcon(null); 

     edit.add(Cut); 
       edit.add(Copy); 
       edit.add(Paste); 

     edit.getItem(0).setText("Cut out"); 
     edit.getItem(1).setText("Copy"); 
     edit.getItem(2).setText("Paste"); 

JToolBar tool = new JToolBar(); 
     add(tool,BorderLayout.NORTH); 
     tool.add(New); 
       tool.add(Open);tool.add(Save); 
     tool.addSeparator(); 

     JButton cut = tool.add(Cut), cop = tool.add(Copy),pas = tool.add(Paste); 

     cut.setText(null); cut.setIcon(new ImageIcon("cut.gif")); 
     cop.setText(null); cop.setIcon(new ImageIcon("copy.gif")); 
     pas.setText(null); pas.setIcon(new ImageIcon("paste.gif")); 

     //Save.setEnabled(false); 
     //SaveAs.setEnabled(false); 

     setDefaultCloseOperation(EXIT_ON_CLOSE); 
     pack(); 
     area.addKeyListener(k1); 
     setTitle(currentFile); 
     setVisible(true); 
    } 
private KeyListener k1 = new KeyAdapter() { 
     public void keyPressed(KeyEvent e) { 
      changed = true; 
      Save.setEnabled(true); 
      SaveAs.setEnabled(true); 
     } 
    }; 
Action New = new AbstractAction("New", new ImageIcon("new.gif")) { 
     public void actionPerformed(ActionEvent e) { 
      saveOld(); 
      currentFile = "Untitled"; 
         setTitle(currentFile); 
         changed = false; 
         area.setText(null); 
       } 
    }; 
Action Open = new AbstractAction("Open", new ImageIcon("open.gif")) { 
     public void actionPerformed(ActionEvent e) { 
      saveOld(); 
      if(dialog.showOpenDialog(null)==JFileChooser.APPROVE_OPTION) { 
       readInFile(dialog.getSelectedFile().getAbsolutePath()); 
      } 
      SaveAs.setEnabled(true); 
     } 
    }; 
Action Save = new AbstractAction("Save", new ImageIcon("save.gif")) { 
     public void actionPerformed(ActionEvent e) { 
      if(!currentFile.equals("Untitled")) 
       saveFile(currentFile); 
      else 
       saveFileAs(); 
     } 
    }; 
Action SaveAs = new AbstractAction("Save as...") { 
     public void actionPerformed(ActionEvent e) { 
      saveFileAs(); 
     } 
    }; 
Action Quit = new AbstractAction("Quit") { 
     public void actionPerformed(ActionEvent e) { 
      saveOld(); 
      System.exit(0); 
     } 
    }; 
     private TextEditor(int i, int i0) { 
     throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates. 
    } 
    ActionMap m = area.getActionMap(); 
    Action Cut = m.get(DefaultEditorKit.cutAction); 
    Action Copy = m.get(DefaultEditorKit.copyAction); 
    Action Paste = m.get(DefaultEditorKit.pasteAction); 

private void saveFileAs() { 
     if(dialog.showSaveDialog(null)==JFileChooser.APPROVE_OPTION) 
      saveFile(dialog.getSelectedFile().getAbsolutePath()); 
    } 
private void saveOld() { 
     if(changed) { 
      if(JOptionPane.showConfirmDialog(this, "Would you like to save "+ currentFile +" ?","Save",JOptionPane.YES_NO_OPTION)== JOptionPane.YES_OPTION) 
       saveFile(currentFile); 
     } 
    } 
private void readInFile(String fileName) { 
     try { 
      FileReader r = new FileReader(fileName); 
      area.read(r,null); 
      r.close(); 
      currentFile = fileName; 
      setTitle(currentFile); 
      changed = false; 
     } 
     catch(IOException e) { 
      Toolkit.getDefaultToolkit().beep(); 
      JOptionPane.showMessageDialog(this,"Editor can't find the file called "+fileName); 
     } 
    } 
private void saveFile(String fileName) { 
     try { 
      FileWriter w = new FileWriter(fileName); 
      area.write(w); 
      w.close(); 
      currentFile = fileName; 
      setTitle(currentFile); 
      changed = false; 
      Save.setEnabled(false); 
     } 
     catch(IOException e) { 
     } 
    } 
public static void main(String[] arg) { 
     new TextEditor(); 
    } 

    private void setsize(int i, int i0) { 
     throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates. 
    } 

    private void a() { 
     throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates. 
    } 

    private void a2() { 
     throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates. 
    } 

} 

//circlecomponent 

import java.awt.event.ActionListener; 
import java.awt.event.*; 
import java.awt.geom.*; 
import javax.swing.*; 
import java.awt.*; 

public class CircleComponent extends JPanel 
{ 
     Ellipse2D.Double circle; 

     public CircleComponent(int radius) 
     { 
      circle = new Ellipse2D.Double(0, 0, radius, radius); 
      setOpaque(false); 
     } 

    CircleComponent() { 
     throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates. 
    } 

     public Dimension getPreferredSize() 
     { 
      Rectangle bounds = circle.getBounds(); 
      return new Dimension(bounds.width, bounds.height); 
     } 

     public void paintComponent(Graphics g) 
     { 
      super.paintComponent(g); 
      Graphics2D g2 = (Graphics2D) g; 
      g2.setColor(getForeground()); 
      g2.fill(circle); 

     } 
/* 
     public int getWidth(int aWidth) 
     { 
      width = aWidth; 
      return width; 
     } 
*/ 

    public void a2() 
    { 
      // Create a panel using a null layout so we can add components at random positions 
      final JPanel center = new JPanel(); 
      center.setLayout(null); 

       JButton button = new JButton("Draw"); 
       button.addActionListener(new ActionListener() 
       { 
       public void actionPerformed(ActionEvent event) 
       { 
        String x = JOptionPane.showInputDialog("X Coordinate", "Enter an x coordinate"); 
         try{ 
        int xCoord = Integer.parseInt(x); 
        String y = JOptionPane.showInputDialog("Y Coordinate", "Enter a y coordinate"); 
        int yCoord = Integer.parseInt(y); 
        String width = JOptionPane.showInputDialog("Radius", "Enter the length of the radius"); 
        int radius = Integer.parseInt(width); 
        CircleComponent component = new CircleComponent(radius); 
        component.setLocation(xCoord,yCoord); 
        component.setSize(component.getPreferredSize()); 
        center.add(component); 
        center.repaint(); 
        }catch(NumberFormatException ex){ 

     System.err.println("Ilegal input"); 
       } 
       } 
       }); 

       JFrame frame = new JFrame(); 
       frame.add(center, BorderLayout.CENTER); 
       frame.add(button, BorderLayout.NORTH); 
       frame.setSize(500, 500); 
       frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 
       frame.setVisible(true); 
    } 

    void addActionListener() { 
     throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates. 
    } 

    void addActionListener(ActionListener actionListener) { 
     throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates. 
    } 

/* CircleComponent() { 
     throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates. 
    } 

    CircleComponent() { 
     throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates. 
    } 

    CircleComponent() { 
     throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates. 
    }*/ 
} 

Answer 1

İlk önce hata ayıklamayı öğrenmelisiniz; ama bu durumda hata ayıklamak zorunda değilsiniz. Ben senin kod çalıştırmasına ve H Düğmesi'ni zaman

, bu dizisindeki

İstisna verir "AWT-EventQueue-0" java.lang.UnsupportedOperationException: Henüz desteklenmez. CircleComponent. TextEditor $ 7.actionPerformed

yüzden istisna (Benim yaptığım, onu atıyor CircleComponent hat 24 üzerinde gerçekleştiğini (bkz TextEditor.java:58) 'den (CircleComponent.java:24) neden bilmiyorum)

23 CircleComponent() { 
24  throw new UnsupportedOperationException("Not supported yet."); // To change body of generated methods, choose Tools | Templates. 
25 } 

İpuçları: Geliştirici 24 numaralı satırda; kullanmayın, Araçlar | Şablonlar. Bu nedenle, 58. satırında TextEditor.java satırında yeni CircleComponent çağrısını tekrar Exception Trace'den veya CircleComponent Developer ile iletişime geçmemelisiniz;)

Kodunuzun güncelleştirilmiş sürümü (Desteklenmeyen İşlemler istisnası olmadan);

// class:TextEditor.java 

import java.awt.BorderLayout; 
import java.awt.FlowLayout; 
import java.awt.Font; 
import java.awt.Toolkit; 
import java.awt.event.ActionEvent; 
import java.awt.event.ActionListener; 
import java.awt.event.KeyAdapter; 
import java.awt.event.KeyEvent; 
import java.awt.event.KeyListener; 
import java.io.FileReader; 
import java.io.FileWriter; 
import java.io.IOException; 

import javax.swing.AbstractAction; 
import javax.swing.Action; 
import javax.swing.ActionMap; 
import javax.swing.ImageIcon; 
import javax.swing.JButton; 
import javax.swing.JFileChooser; 
import javax.swing.JFrame; 
import javax.swing.JMenu; 
import javax.swing.JMenuBar; 
import javax.swing.JOptionPane; 
import javax.swing.JScrollPane; 
import javax.swing.JTextArea; 
import javax.swing.JToolBar; 
import javax.swing.text.DefaultEditorKit; 

public class TextEditor extends JFrame { 
    static int fn = 0; 
    private JTextArea area = new JTextArea(20, 120); 
    // TextEditor frm = new TextEditor(10,10); 

    private JFileChooser dialog = new JFileChooser(System.getProperty("user.dir")); 
    private String currentFile = "Untitled"; 
    private boolean changed = false; 
    private JButton a = new JButton("H"); 
    private JButton b = new JButton("HE"); 
    private JButton c = new JButton("O"); 

    public TextEditor() { 
     setLayout(new FlowLayout()); 
     area.setFont(new Font("Monospaced", Font.PLAIN, 12)); 
     JScrollPane scroll = new JScrollPane(area, JScrollPane.VERTICAL_SCROLLBAR_ALWAYS, JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS); 
     add(scroll, BorderLayout.CENTER); 
     add(a);// add the button to the JFrame 
     add(b); 
     add(c); 
     JMenuBar JMB = new JMenuBar(); 
     setJMenuBar(JMB); 
     JMenu file = new JMenu("File"); 
     JMenu edit = new JMenu("Edit"); 
     JMB.add(file); 
     JMB.add(edit); 

     a.addActionListener(new ActionListener() { 
      public void actionPerformed(ActionEvent e) { 
       CircleComponent a1 = new CircleComponent(); 
       a1.a2(); 
       selectionButtonPressed(); 
      } 

      private void selectionButtonPressed() { 
      } 
     }); 
     file.add(New); 
     file.add(Open); 
     file.add(Save); 
     file.add(SaveAs); 
     file.add(Quit); 
     file.addSeparator(); 

     for (int i = 0; i < 4; i++) 
      file.getItem(i).setIcon(null); 

     edit.add(Cut); 
     edit.add(Copy); 
     edit.add(Paste); 

     edit.getItem(0).setText("Cut out"); 
     edit.getItem(1).setText("Copy"); 
     edit.getItem(2).setText("Paste"); 

     JToolBar tool = new JToolBar(); 
     add(tool, BorderLayout.NORTH); 
     tool.add(New); 
     tool.add(Open); 
     tool.add(Save); 
     tool.addSeparator(); 

     JButton cut = tool.add(Cut), cop = tool.add(Copy), pas = tool.add(Paste); 

     cut.setText(null); 
     cut.setIcon(new ImageIcon("cut.gif")); 
     cop.setText(null); 
     cop.setIcon(new ImageIcon("copy.gif")); 
     pas.setText(null); 
     pas.setIcon(new ImageIcon("paste.gif")); 

     // Save.setEnabled(false); 
     // SaveAs.setEnabled(false); 

     setDefaultCloseOperation(EXIT_ON_CLOSE); 
     pack(); 
     area.addKeyListener(k1); 
     setTitle(currentFile); 
     setVisible(true); 
    } 

    private KeyListener k1 = new KeyAdapter() { 
     public void keyPressed(KeyEvent e) { 
      changed = true; 
      Save.setEnabled(true); 
      SaveAs.setEnabled(true); 
     } 
    }; 
    Action New = new AbstractAction("New", new ImageIcon("new.gif")) { 
     public void actionPerformed(ActionEvent e) { 
      saveOld(); 
      currentFile = "Untitled"; 
      setTitle(currentFile); 
      changed = false; 
      area.setText(null); 
     } 
    }; 
    Action Open = new AbstractAction("Open", new ImageIcon("open.gif")) { 
     public void actionPerformed(ActionEvent e) { 
      saveOld(); 
      if (dialog.showOpenDialog(null) == JFileChooser.APPROVE_OPTION) { 
       readInFile(dialog.getSelectedFile().getAbsolutePath()); 
      } 
      SaveAs.setEnabled(true); 
     } 
    }; 
    Action Save = new AbstractAction("Save", new ImageIcon("save.gif")) { 
     public void actionPerformed(ActionEvent e) { 
      if (!currentFile.equals("Untitled")) 
       saveFile(currentFile); 
      else 
       saveFileAs(); 
     } 
    }; 
    Action SaveAs = new AbstractAction("Save as...") { 
     public void actionPerformed(ActionEvent e) { 
      saveFileAs(); 
     } 
    }; 
    Action Quit = new AbstractAction("Quit") { 
     public void actionPerformed(ActionEvent e) { 
      saveOld(); 
      System.exit(0); 
     } 
    }; 

    private TextEditor(int i, int i0) { 
     throw new UnsupportedOperationException("Not supported yet."); // To change body of generated methods, choose Tools | Templates. 
    } 

    ActionMap m = area.getActionMap(); 
    Action Cut = m.get(DefaultEditorKit.cutAction); 
    Action Copy = m.get(DefaultEditorKit.copyAction); 
    Action Paste = m.get(DefaultEditorKit.pasteAction); 

    private void saveFileAs() { 
     if (dialog.showSaveDialog(null) == JFileChooser.APPROVE_OPTION) 
      saveFile(dialog.getSelectedFile().getAbsolutePath()); 
    } 

    private void saveOld() { 
     if (changed) { 
      if (JOptionPane.showConfirmDialog(this, "Would you like to save " + currentFile + " ?", "Save", JOptionPane.YES_NO_OPTION) == JOptionPane.YES_OPTION) 
       saveFile(currentFile); 
     } 
    } 

    private void readInFile(String fileName) { 
     try { 
      FileReader r = new FileReader(fileName); 
      area.read(r, null); 
      r.close(); 
      currentFile = fileName; 
      setTitle(currentFile); 
      changed = false; 
     } catch (IOException e) { 
      Toolkit.getDefaultToolkit().beep(); 
      JOptionPane.showMessageDialog(this, "Editor can't find the file called " + fileName); 
     } 
    } 

    private void saveFile(String fileName) { 
     try { 
      FileWriter w = new FileWriter(fileName); 
      area.write(w); 
      w.close(); 
      currentFile = fileName; 
      setTitle(currentFile); 
      changed = false; 
      Save.setEnabled(false); 
     } catch (IOException e) { 
     } 
    } 

    public static void main(String[] arg) { 
     new TextEditor(); 
    } 

    private void setsize(int i, int i0) { 
     throw new UnsupportedOperationException("Not supported yet."); // To change body of generated methods, choose Tools | Templates. 
    } 

    private void a() { 
     throw new UnsupportedOperationException("Not supported yet."); // To change body of generated methods, choose Tools | Templates. 
    } 

    private void a2() { 
     throw new UnsupportedOperationException("Not supported yet."); // To change body of generated methods, choose Tools | Templates. 
    } 

} 

import java.awt.BorderLayout; 
import java.awt.Dimension; 
import java.awt.Graphics; 
import java.awt.Graphics2D; 
import java.awt.Rectangle; 
import java.awt.event.ActionEvent; 
import java.awt.event.ActionListener; 
import java.awt.geom.Ellipse2D; 

import javax.swing.JButton; 
import javax.swing.JFrame; 
import javax.swing.JOptionPane; 
import javax.swing.JPanel; 

public class CircleComponent extends JPanel { 
    Ellipse2D.Double circle; 

    public CircleComponent(int radius) { 
     circle = new Ellipse2D.Double(0, 0, radius, radius); 
     setOpaque(false); 
    } 

    CircleComponent() { 
    } 

    public Dimension getPreferredSize() { 
     Rectangle bounds = circle.getBounds(); 
     return new Dimension(bounds.width, bounds.height); 
    } 

    public void paintComponent(Graphics g) { 
     super.paintComponent(g); 
     Graphics2D g2 = (Graphics2D) g; 
     g2.setColor(getForeground()); 
     g2.fill(circle); 

    } 

    /* 
    * public int getWidth(int aWidth) { width = aWidth; return width; } 
    */ 

    public void a2() { 
     // Create a panel using a null layout so we can add components at random positions 
     final JPanel center = new JPanel(); 
     center.setLayout(null); 

     JButton button = new JButton("Draw"); 
     button.addActionListener(new ActionListener() { 
      public void actionPerformed(ActionEvent event) { 
       String x = JOptionPane.showInputDialog("X Coordinate", "Enter an x coordinate"); 
       try { 
        int xCoord = Integer.parseInt(x); 
        String y = JOptionPane.showInputDialog("Y Coordinate", "Enter a y coordinate"); 
        int yCoord = Integer.parseInt(y); 
        String width = JOptionPane.showInputDialog("Radius", "Enter the length of the radius"); 
        int radius = Integer.parseInt(width); 
        CircleComponent component = new CircleComponent(radius); 
        component.setLocation(xCoord, yCoord); 
        component.setSize(component.getPreferredSize()); 
        center.add(component); 
        center.repaint(); 
       } catch (NumberFormatException ex) { 

        System.err.println("Ilegal input"); 
       } 
      } 
     }); 

     JFrame frame = new JFrame(); 
     frame.add(center, BorderLayout.CENTER); 
     frame.add(button, BorderLayout.NORTH); 
     frame.setSize(500, 500); 
     frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 
     frame.setVisible(true); 
    } 

    void addActionListener() { 
     throw new UnsupportedOperationException("Not supported yet."); // To change body of generated methods, choose Tools | Templates. 
    } 

    void addActionListener(ActionListener actionListener) { 
     throw new UnsupportedOperationException("Not supported yet."); // To change body of generated methods, choose Tools | Templates. 
    } 

    /* 
    * CircleComponent() { throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose 
    * Tools | Templates. } 
    * 
    * CircleComponent() { throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose 
    * Tools | Templates. } 
    * 
    * CircleComponent() { throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose 
    * Tools | Templates. } 
    */ 
}