text.java

一个APPLET小程序用来猜数字.

import javax.swing.*;
import java.applet.Applet;
import java.awt.*;
import java.lang.*;
import java.awt.event.*;

public class text extends Applet implements ActionListener{
	TextField text1;Button but1;Label lab1;Label lab2;
	double num=100+(200-100)*Math.random() ;
	int intnum=0;
	int temp=0;
	public void init(){
		setLayout(new FlowLayout());
		text1=new TextField(20);
		but1=new Button("猜");
		lab1=new Label("请你输入100——200之间的数值!",Label.LEFT);
		lab2=new Label(" ",Label.CENTER);
		add(lab1);
		add(text1);
		add(but1);
		
		add(lab2);
		text1.addActionListener(this);
		but1.addActionListener(this);
		this.setSize(350,150);
	}

	public void actionPerformed(ActionEvent e) {
		
		intnum=(int)num;
		if(e.getSource()==but1){
			temp=Integer.parseInt( text1.getText());
			if(temp>100&&temp<200){
				if(temp>intnum){
					lab2.setText("大了");
				}
				else if(temp<intnum){
					lab2.setText("小了");
				}
				else 
					lab2.setText("您答对啦!答案就是"+intnum);
			}
			else
				lab2.setText("超出数据范围");
		}
		
	}
}