本文提供了一个使用Java实现的简单示例，展示如何从一个字符串数组中随机选择不重复的元素进行打印。通过定义一个标记数组来跟踪哪些元素已被选中，确保了每个元素仅被打印一次。
package com.example;
import java.util.Random;
public class text {
public static void main(String[] args) {
// TODO Auto-generated method stub
String[] arr = {"张三","王五","李四","旺财","赵四"};
boolean flage[] = new boolean[arr.length];//锁
Random r = new Random();//生成随机数
int index = -1;//锁的下标
for (int i = 0; i < arr.length; i++) {
do{
index = r.nextInt(arr.length);
}while(flage[index]);
flage[index] = true;
System.out.println(arr[index]);
}
}
}
import java.util.Random;
public class text {
public static void main(String[] args) {
// TODO Auto-generated method stub
String[] arr = {"张三","王五","李四","旺财","赵四"};
boolean flage[] = new boolean[arr.length];//锁
Random r = new Random();//生成随机数
int index = -1;//锁的下标
for (int i = 0; i < arr.length; i++) {
do{
index = r.nextInt(arr.length);
}while(flage[index]);
flage[index] = true;
System.out.println(arr[index]);
}
}
}
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