界面设计添加监听器

柔情只为你懂 2022-08-27 05:54 172阅读 0赞

import java.awt.*;
    import java.awt.event.*;
    public class TwoListen implements MouseListener,MouseMotionListener
    {
    	private Frame frame;
    	private TextField textField;
    	public void method()
    	{
    		frame=new Frame("Two Listen Example");
    		frame.add(new Label("click"),BorderLayout.NORTH);
    		textField=new TextField(30);
    		frame.add(textField,BorderLayout.SOUTH);
    		frame.addMouseMotionListener(this);
    		frame.addMouseListener(this);
    		frame.addMouseListener(new MyMouseListener());
    		frame.setSize(200,200);
    		frame.setVisible(true);
    	}
    	@Override
    	public void mouseClicked(MouseEvent e)
    	{
    		// TODO Auto-generated method stub
    		
    	}
    	@Override
    	public void mouseEntered(MouseEvent e)
    	{
    		// TODO Auto-generated method stub
    		
    	}
    	@Override
    	public void mouseExited(MouseEvent e)
    	{
    		// TODO Auto-generated method stub
    		String str="This Mouse has left the Frame";
    		this.textField.setText(str);
    	}
    	@Override
    	public void mousePressed(MouseEvent e)
    	{
    		// TODO Auto-generated method stub
    		
    	}
    	@Override
    	public void mouseReleased(MouseEvent e)
    	{
    		// TODO Auto-generated method stub
    		
    	}
    	@Override
    	public void mouseDragged(MouseEvent e)
    	{
    		// TODO Auto-generated method stub
    		String str="x: "+e.getX()+" ,y: "+e.getY();
    		this.textField.setText(str);
    		
    	}
    	@Override
    	public void mouseMoved(MouseEvent e)
    	{
    		// TODO Auto-generated method stub
    		
    	}
    	public static void main(String args[])
    	{
    		TwoListen test=new TwoListen();
    		test.method();
    	}
    }
    class MyMouseListener implements MouseListener
    {
    
    	@Override
    	public void mouseClicked(MouseEvent e)
    	{
    		// TODO Auto-generated method stub
    		
    	}
    
    	@Override
    	public void mouseEntered(MouseEvent e)
    	{
    		// TODO Auto-generated method stub
    		System.out.println("The Mouse has entered into the Frame");
    	}
    
    	@Override
    	public void mouseExited(MouseEvent e)
    	{
    		// TODO Auto-generated method stub
    		System.out.println("The Mouse has left the Frame");
    	}
    
    	@Override
    	public void mousePressed(MouseEvent e)
    	{
    		// TODO Auto-generated method stub
    		
    	}
    
    	@Override
    	public void mouseReleased(MouseEvent e)
    	{
    		// TODO Auto-generated method stub
    		
    	}
    	
    }