📄 example7_34.java
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import java.awt.*;
import java.awt.event.*;
class Win extends Frame implements KeyListener
{ Button b;
Win()
{ setLayout(new FlowLayout());
b=new Button("我是一个按钮");
b.addKeyListener(this);
add(b);
addWindowListener(new WindowAdapter()
{public void windowClosing(WindowEvent e)
{System.exit(0);}
}
);
setBounds(10,10,300,300);
setVisible(true);
validate();
}
public void keyPressed(KeyEvent e)
{ Button button=(Button)e.getSource();
int x=0,y=0,w=0,h=0;
x=button.getBounds().x;
y=button.getBounds().y;
w=button.getBounds().width;
h=button.getBounds().height;
if(e.getModifiers()==InputEvent.SHIFT_MASK&&e.getKeyCode()==KeyEvent.VK_X)
{
button.setLocation(y,x);
}
else if(e.getModifiers()==InputEvent.CTRL_MASK&&e.getKeyCode()==KeyEvent.VK_E)
{
button.setSize(h,w);
}
}
public void keyTyped(KeyEvent e) {}
public void keyReleased(KeyEvent e) {}
}
public class Example7_34
{
public static void main(String args[])
{
new Win();
}
}
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