testhost.java

来自「JSON(javascript) object creator and exam」· Java 代码 · 共 13 行

public class testHost 
{
	public static void main(String[] args) 
	{
        try {      
            InetAddress.getByName(args[0]);
        } catch (UnknownHostException e) {
            throw new IllegalArgumentException("Could not find host "+args[0]);
        }
		System.out.println("Hello World!");
	}
}