?? localip.java
字號:
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("測試InetAddress類的用法");
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("本機IP地址為: "+inetAddr1.getHostAddress(),30,50);
g.drawString("本機名稱為: "+inetAddr1.getHostName(),30,80);
g.drawString("本機的名稱/IP為: "+inetAddr1.toString(),30,110);
g.drawString("jakarta.apache.org的IP為: "+inetAddr2.getHostAddress(),30,140);
g.drawString("64.124.81.53機器的主機名為: "+inetAddr3.getHostName(),30,170);
g.drawString("64.124.81.53機器的主機/IP為: "+inetAddr3.toString(),30,200);
}
public static void main(String[] args){
LocalIP localIP=new LocalIP();
}
}
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