ch3_e3_13.java

各种关于JAVA的初级编程

import java.applet.*;
import java.awt.*;
import java.awt.event.*;

public class ch3_e3_13 extends Applet implements ActionListener
{
	Label result;
	TextField in1,in2,in3;
	Button btn;
	int a=0,b=0,c=0,min;

	public void init()
	{						  
		result = new Label("请先输入三个待比较的整数");
		in1 = new TextField(5);
		in2 = new TextField(5);
		in3 = new TextField(5);
		btn = new Button("比较");
		add(in1);
		add(in2);
		add(in3);
		add(btn);
		add(result);
		btn.addActionListener(this);
	}
	public void actionPerformed(ActionEvent e)
	{
		a = Integer.parseInt(in1.getText());
		b = Integer.parseInt(in2.getText());
		c = Integer.parseInt(in3.getText());
		if(a<b)
			if(a<c)
				min = a;
			else
				min = c;
		else
			if(b<c)
				min = b;
			else 
				min = c;
		result.setText("三数中的最小值是："+ min );
	}
}