首页javaarrayJava Collection - 如何使用随机数从数组中绘制名称

Java Collection - 如何使用随机数从数组中绘制名称

我们想知道如何使用随机数从数组中绘制名称。
import java.util.ArrayList;
public class Main{
public static void main(String[] args) {
ArrayList<String> list = new ArrayList<>();
list.add("A");
list.add("B");
list.add("C");
list.add("D");
list.add("E");
list.add("F");
list.add("G");
list.add("H");
System.out.println(list);
while (!list.isEmpty()) {
long index = Math.round(Math.floor(Math.random() * list.size()));
System.out.println("Name " + list.get((int) index));
list.remove((int) index);
}
}
}
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