localip.java

初学的好东西值得一看看欢迎下载观看使用

import javax.swing.JFrame;
import java.net.InetAddress;
import java.net.UnknownHostException;
import java.awt.Graphics;
import java.awt.Color;
public class LocalIP extends JFrame{
	InetAddress inetAddr1;
	InetAddress inetAddr2;
	InetAddress inetAddr3;
	LocalIP(){
		setTitle("测试InetAddress类的用法");
		setSize(300,250);
		setBackground(Color.white);
		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		try{
			inetAddr1=InetAddress.getLocalHost();
			inetAddr2=InetAddress.getByName("jakarta.apache.org");
			inetAddr3=InetAddress.getByName("64.124.81.53");
		}catch(UnknownHostException e){}
		show();
	}
	public void paint(Graphics g){
		g.drawString("本机IP地址为:  "+inetAddr1.getHostAddress(),30,50);
		g.drawString("本机名称为:  "+inetAddr1.getHostName(),30,80);
		g.drawString("本机的名称/IP为:  "+inetAddr1.toString(),30,110);
		g.drawString("jakarta.apache.org的IP为:  "+inetAddr2.getHostAddress(),30,140);
		g.drawString("64.124.81.53机器的主机名为:  "+inetAddr3.getHostName(),30,170);
		g.drawString("64.124.81.53机器的主机/IP为:  "+inetAddr3.toString(),30,200);
	}
	public static void main(String[] args){
		LocalIP localIP=new LocalIP();
	}
}