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  1. import javax.swing.* ;
  2.  
  3. import java.awt.* ;
  4. import java.awt.event.* ;
  5.  
  6. import javax.swing.* ;
  7.  
  8. import com.sun.java.swing.plaf.windows.WindowsBorders ;
  9. import com.sun.java.swing.plaf.windows.WindowsEditorPaneUI ;
  10. import com.sun.xml.internal.messaging.saaj.util.transform.EfficientStreamingTransformer ;
  11.  
  12. public class Test extends JFrame implements MouseListener, MouseMotionListener
  13. {
  14.   int flag ;
  15.   int x = 0 ;
  16.   int y = 0 ;
  17.   int startX, startY, endX, endY ;
  18.  
  19.   public static void main( String[] args )
  20.   {
  21.     new Test() ;
  22.   }
  23.  
  24.   public Test()
  25.   {
  26.     Container paneContainer = getContentPane() ;
  27.     paneContainer.addMouseListener( this ) ;
  28.     paneContainer.addMouseMotionListener( this ) ;
  29.     setSize( 300, 300 ) ;
  30.     show() ;
  31.     addWindowListener( new WindowAdapter()
  32.     {
  33.       @SuppressWarnings("unused")
  34.       public void windowsClosing( WindowEvent e )
  35.       {
  36.         System.exit( 0 ) ;
  37.       }
  38.     } ) ;
  39.   }
  40.  
  41.   @Override
  42.   public void mouseClicked( MouseEvent e )
  43.   {/*
  44.     * label.setText( "mouseClicked" ) ; if ( e.getClickCount() == 2 ) { JFrame
  45.     * newFrame = new JFrame( "幹" ) ; newFrame.setSize( 200, 200 ) ;
  46.     * newFrame.show() ; }
  47.     */
  48.   }
  49.  
  50.   @Override
  51.   public void mouseEntered( MouseEvent e )
  52.   {
  53.     // label.setText( e.getX() + " " + e.getY() ) ;
  54.  
  55.   }
  56.  
  57.   @Override
  58.   public void mouseExited( MouseEvent e )
  59.   {
  60.     // TODO Auto-generated method stub
  61.     // label.setText( "mouseExited" ) ;
  62.   }
  63.  
  64.   @Override
  65.   public void mousePressed( MouseEvent e )
  66.   {
  67.     startX = e.getX() ;
  68.     startY = e.getY() ;
  69.   }
  70.  
  71.   @Override
  72.   public void mouseReleased( MouseEvent e )
  73.   {
  74.     endX = e.getX() ;
  75.     endY = e.getY() ;
  76.   }
  77.  
  78.   public void mouseMoved( MouseEvent event )
  79.   {
  80.     flag = 1 ;
  81.     x = event.getX() ;
  82.     y = event.getY() ;
  83.     repaint() ;
  84.   }
  85.  
  86.   public void mouseDragged( MouseEvent event )
  87.   {
  88.     flag = 2 ;
  89.     x = event.getX() ;
  90.     y = event.getY() ;
  91.     repaint() ;
  92.   }
  93.  
  94.   public void update( Graphics g )
  95.   {
  96.     // graphics.clearRect( 0, 0, getWidth(), getHeight() ) ;
  97.     g.setColor( Color.BLUE ) ;
  98.     g.fillRect( 0, 0, getWidth(), getHeight() ) ;
  99.     paint( g ) ;
  100.  
  101.   }
  102.  
  103.   public void paint( Graphics graphics )
  104.   {
  105.     graphics.setColor( Color.black ) ;
  106.     if ( flag == 1 )
  107.     {
  108.       graphics.drawString( "滑鼠:(" + x + "," + y + ")", 10, 50 ) ;
  109.       graphics.drawLine( startX, startY, endX, endY ) ;
  110.     } else if ( flag == 2 )
  111.     {
  112.       graphics.drawString( "拖曳:(" + x + "," + y + ")", 10, 50 ) ;
  113.       graphics.drawLine( startX, startY, x, y ) ;
  114.     }
  115.   }
  116.  
  117. }
  118.  
Compilation error #stdin compilation error #stdout 0s 0KB
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Standard input is empty
compilation info 
Main.java:12: class Test is public, should be declared in a file named Test.java
public class Test extends JFrame implements MouseListener, MouseMotionListener
       ^
Main.java:10: package com.sun.xml.internal.messaging.saaj.util.transform does not exist
import com.sun.xml.internal.messaging.saaj.util.transform.EfficientStreamingTransformer ;
                                                         ^
Note: Main.java uses or overrides a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
2 errors
stdout
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Standard output is empty
https://ideone.com/PIMlY
language:
Java (HotSpot 12)
created:
13 years ago
visibility:
secret

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