package com.company;

import sun.misc.Unsafe;

/**
 * Created by yellowboy on 2017/3/9.
 */
public class Main3 {
    public static void main(String[] args) throws Exception {
        Integer[] a = new Integer[]{1, 2, 3, 4, 5, 7, 9, 888, 8, 102};//給定一個整形陣列
final int length  = a.length ;
        final Unsafe unsafe = UnsafeUtil.getUnsafe
 
();//獲取unsafe物件用於分配記憶體
final long addr[] = new long[length];//定義addr陣列記錄整形陣列每個值儲存的位置
try {
            for(int i = 0 ;i < length ; i++ )
            {
                addr[i] = unsafe.allocateMemory(Integer.SIZE);//分配一個Integer的大小的記憶體
unsafe.putInt(addr[i],a[i]);//把數字放在地址空間上
}
            a = null;
            for
 
(int i = 0 ;i < length ; i++ )
            {
                System.out.println(unsafe.getInt(addr[i]));//輸出每個地址空間的值
}
        } finally {
            for(int i = 0 ;i < length ; i++ )
            {
                unsafe.freeMemory(addr[i]);//釋放每個地址空間
}
        }

    }
}