package cn.just.shinelon.reference;

import java.lang.ref.SoftReference;

/**

* 软引用

* @author shinelon

*

*/

public class SoftReferenceTest {

public static void main(String[] args){

SoftReference<Person>[] people = new SoftReference[10000];

for(int i=0;i<people.length;i++){

people[i]=new SoftReference<Person>(new Person("名字"+i,(i+1)*4%100));

}

System.out.println(people[2].get());

System.out.println(people[4].get());

//通知系统进行垃圾回收

System.gc();

System.runFinalization();

//垃圾回收机制运行之后，软引用中的元素保持不变

System.out.println(people[2].get());

System.out.println(people[4].get());

}

}

class Person{

String name;

int age;

public Person(String name,int age){

this.name=name;

this.age=age;

}

public String toString(){

return "Person[name="+name+",age="+age+"]";

}

}