首先，创建一个整数数组-int[]?arr?=?{?20,?40,?60,?80,100,?120,?140,?160,?180,?200};

现在，创建一个Random类对象-Random?rand?=?new?Random();

循环直到数组的长度并随机播放元素-for?(int?i?=?0;?i?

int?index?=?rand.nextInt(arr.length?-?i);

int?tmp?=?arr[arr.length?-?1?-?i];

arr[arr.length?-?1?-?i]?=?arr[index];

arr[index]?=?tmp;

}

示例import?java.util.Arrays;

import?java.util.Random;

public?class?Demo?{

public?static?void?main(String[]?args)?{

int[]?arr?=?{?20,?40,?60,?80,100,?120,?140,?160,?180,?200};

System.out.println("The?integer?array?=?"+Arrays.toString(arr));

Random?rand?=?new?Random();

for(int?i?=?0;?i?

int?index?=?rand.nextInt(arr.length?-?i);

int?tmp?=?arr[arr.length?-?1?-?i];

arr[arr.length?-?1?-?i]?=?arr[index];

arr[index]?=?tmp;

}

System.out.println("Shuffle?integer?array?=?"+Arrays.toString(arr));

}

}

输出结果The?integer?array?=?[20,?40,?60,?80,?100,?120,?140,?160,?180,?200]

Shuffle?integer?array?=?[160,?100,?20,?60,?140,?200,?120,?40,?80,?180]

cs