java - java中的“.class错误”

Question

您好，我对编码非常陌生，当我尝试运行下面的代码时，我不断收到“.class”错误。我缺少什么？

import java.util.Scanner;

import java.util.Scanner;


public class PeopleWeights {
    public static void main(String[] args) {
        Scanner scnr = new Scanner (System.in);
        userWeight = new int[5];
        int i = 0;

        userWeight[0] = 0;
        userWeight[1] = 5;
        userWeight[2] = 6;
        userWeight[3] = 7;
        userWeight[4] = 9;

        System.out.println("Enter weight 1: ");
        userWeight = scnr.nextInt[];

        return;
    }
}

Answer 1

这就是问题

userWeight = scnr.nextInt[];

解决这个问题:

userWeight[0] = scnr.nextInt();        //If you intended to change the first weight

或

userWeight[1] = scnr.nextInt();        //If you intended to change the value of userWeight at index 1 (ie. the second userWeight)

应该可以工作

PS:作为预防措施，不要两次导入 Scanner 类。做一次就够了