java - 将用户输入插入二维数组

Question

我的老师希望我编写代码，询问用户他们想要的行数和列数，然后使用该输入创建一个二维数组。但每次我尝试将变量放入行和列括号中时，第 17 行都会出现此错误:

"The expression must be an array type but it resolved to a class"

package Theatre;

import java.util.Scanner;

public class BoxOffice {

    public static void main(String[] args) {

        Scanner input = new Scanner(System.in); 

        System.out.print("How many rows do you want in your Theatre");
        int r = input.nextInt(); input.nextLine();
        System.out.print("How many Columns do you want in your Theatre");
        int c = input.nextInt(); input.nextLine();
        System.out.printf("You want %d rows and %d columns in your Theatre", r, c);
        int [] [] seat = int [r] [c];  // <-- line 17

我希望第 17 行创建一个二维数组，其中用户想要变量 r 的行位于行括号中，列位于列括号中，但出现错误。

Answer 1

扫描仪输入 = new Scanner(System.in);

    System.out.print("How many rows do you want in your Theatre");
    int r = input.nextInt(); input.nextLine();
    System.out.print("How many Columns do you want in your Theatre");
    int c = input.nextInt(); input.nextLine();
    System.out.printf("You want %d rows and %d columns in your Theatre", r, c);


    int [] [] seat = new int [r] [c];

您忘记将 new 关键字放在数组声明中。