java丢硬币boolean_抛硬币模拟器

在线抛硬币：点击进入

代码如下

//Coin Tossing Simulation

//Java how to program, 5/e, Exercise 6.30

import javax.swing.*;

import java.awt.*;

import java.awt.event.*;

public class CoinTossing extends JApplet implements ActionListener {

int tailNumber=0,headNumber=0;

JLabel TossLable,TailLable,HeadLable;

JButton TossButton;

JTextField TailField,HeadField;

public void init()

{

Container container=getContentPane();

container.setLayout(new FlowLayout());

TossButton= new JButton(“Toss”);

container.add(TossButton);

TailLable= new JLabel(“Tail frequency is:”);

container.add(TailLable);

TailField=new JTextField(10);

container.add(TailField);

HeadLable= new JLabel(“Head frequency is:”);

container.add(HeadLable);

HeadField=new JTextField(10);

container.add(HeadField);

TossButton.addActionListener(this);

}

public void actionPerformed (ActionEvent event)

{

if (Flip())

tailNumber ;

else

headNumber ;

TailField.setText(Integer.toString(tailNumber));

HeadField.setText(Integer.toString(headNumber));

}

public boolean Flip()

{

return Math.random()<0.5;

}

}