/**

* User: cpucode

* Date: 2021/1/5

* Time: 15:54

* Github: https://github.com/CPU-Code

* CSDN: https://blog.csdn.net/qq_44226094

*/

package com.cpucode.java.heap;

import java.util.ArrayList;

import java.util.Random;

//设置VM 选项: -Xms600m -Xmx600m

//通过visualVM 查看GC 变化

// 查看取样器的存储

public class OutOfMemory {

public static void main(String[] args) {

ArrayList<Picture> list = new ArrayList<>();

while (true){

try{

Thread.sleep(20);

} catch(InterruptedException e){

e.printStackTrace();

}

list.add(new Picture(new Random().nextInt(1024 * 1024)));

}

}

}

class Picture{

private final byte[] pixels;

public Picture(int length){

this.pixels = new byte[length];

}

}

/*

Exception in thread "main" java.lang.OutOfMemoryError: Java heap space

at com.cpucode.java.heap.Picture.<init>(OutOfMemory.java:35)

at com.cpucode.java.heap.OutOfMemory.main(OutOfMemory.java:26)

* */