从数组中随机取出各个元素并不重复
1.定义一个Integer的List,且长度和要排序的数组长度相同;
2.从List随机取出一个随机数,该数相当是数组的指针;
3.移除后再从剩下的List元素里面取另一个元素,如此类推
public static void main(String[] args) {
String[] strArray = {"a","b","c","d","e","f","g","h","i","j"};
//定义一个Integer的List,且长度和要排序的数组长度相同;
String[] resultStr = new String[strArray.length];
List<Integer> intList = new ArrayList<Integer>();
//给intList初始化
for (int i = 0; i < strArray.length; i++) {
intList.add(i, i);
}
int i = 0;
//选出随机数
while(intList.size()>0){
Random random = new Random();
int ranIdex = random.nextInt(intList.size());
resultStr[i] = strArray[intList.get(ranIdex)];
//移除随机数
intList.remove(ranIdex);
i++;
}
for (int j = 0; j < resultStr.length; j++) {
System.out.println("最后的结果是========" + resultStr[j]);
}
}