day25/GetAddress.java

本文提供了一个简单的Java程序示例,展示了如何使用Java内置库获取指定网址的所有IP地址。通过InetAddress类的getAllByName方法,程序可以获取到如“http://www.baidu.com”这样的URL对应的多个IP地址。
import java.net.*;
class GetAddress 
{
	public static void main(String[] args) throws Exception
	{
		InetAddress[] ins = InetAddress.getAllByName("http://www.baidu.com");

		for(InetAddress i : ins)
		{
			System.out.println("ip:"+i.getHostAddress());
		}
	}
}

package chixing.day10.homework; class Address2 implements Cloneable { private String city; public Address2(String city) { this.city = city; } public String getCity() { return city; } public void setCity(String city) { this.city = city; } // 重写clone方法 @Override protected Object clone() throws CloneNotSupportedException { return super.clone(); } } class Person2 implements Cloneable { private String name; private Address2 address2; public Person2(String name, Address2 address2) { this.name = name; this.address2 = address2; } public String getName() { return name; } public void setName(String name) { this.name = name; } public Address2 getAddress2() { return address2; } public void setAddress2(Address2 address2) { this.address2 = address2; } // 深克隆 @Override protected Object clone() throws CloneNotSupportedException { Person cloned = (Person) super.clone(); // 对引用类型单独克隆 cloned.address = (Address) address2.clone(); return cloned; } } public class DeepCloneDemo { /*public static void main(String[] args) throws CloneNotSupportedException { Address2 address = new Address2("北京"); Person2 person1 = new Person2("张三", address); Person2 person2 = (Person2) person1.clone(); // 修改原对象的地址 address.setCity("上海"); System.out.println("person1: " + person1.getName() + " - " + person1.getAddress().getCity()); // 上海 System.out.println("person2: " + person2.getName() + " - " + person2.getAddress().getCity()); // 北京(独立Address对象) }*/ } 你的深克隆cloned.address = (Address) address2.clone();这行address 爆红
08-03
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