Question

当我运行此代码时，技术上应该没有任何问题，但我不断收到错误“无法找到符号随机” 我需要在代码的开头输入任何内容吗？？

public class RandomNumbers {

    public static void main(String[] args) {
        Random r = new Random();
        System.out.println("First number: " + r.nextInt(100));
        System.out.println("Second number: " + r.nextInt(100));
        System.out.println("Third number: " + r.nextInt(100));
        System.out.println("Fourth number: " + r.nextInt(100));
        System.out.println("Fifth number: " + r.nextInt(100));
    }
}

Answer 1

您需要导入Random类

import java.util.Random; // here

public class RandomNumbers {

    public static void main(String[] args) {
        Random r = new Random();
        System.out.println("First number: " + r.nextInt(100));
        System.out.println("Second number: " + r.nextInt(100));
        System.out.println("Third number: " + r.nextInt(100));
        System.out.println("Fourth number: " + r.nextInt(100));
        System.out.println("Fifth number: " + r.nextInt(100));
     }
}

Answer 2

你导入了Random吗？如果你不只是把

import java.util.Random

在顶部

Answer 3

在开头尝试导入java.util.Random。

找不到符号类Random

3 个答案: