linkpane.java

来自「关于java的一些课后作业的相关解释 对于初学者还是有一定程度的帮助 希望大」· Java 代码 · 共 24 行

import java.util.*;
import java.awt.event.*;
import javax.swing;
public class linkPanel extends JPanel
{private JButton push;
private JLabel label;
private float nount;
public linkPanel()
{push=new JButton("push an random int");
push.addActionListener(new ButtonListener());
label =new JLabel("push:"+count);
add(push);
add(label);
setPreferredSize(new Dimension(300,200));
setBackgound(color.cyan);
}
}
public class ButtonListener implement ActionListener
{public void actionListener (ActionListener event)
{Random generator=new Random();
count=generator.nextFloat()*100;
label.setText("push:"+count);
}
}