Question

package com.Bruno;

import java.util.Scanner;
public class Main {


    public static void main(String[] args) {
        Scanner reader = new Scanner(System.in);

        System.out.print("How Many:");
        int numberOne = Integer.parseInt(reader.nextLine());




        while ((numberOne >=0) && (numberOne <=7)) {
            System.out.print(printText() + "\n" );
            numberOne--;
       }

    public static void printText() {
        System.out.println("In the beginning there were the swamp, the hoe and Java." + "/n");
    }



    }
}

Answer 1

您尝试将printText（）方法称为嵌套，这是不允许的。
即使你将printText（）从main中取出，它也会出错，因为类型不匹配。 printText（）打印到输出流并且不返回任何内容。它不能直接在另一个方法中使用，因为它什么都不返回。
使用可以输入到其他方法的返回类型的方法来解决问题

代码：

import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
        Scanner reader = new Scanner(System.in);

        System.out.print("How Many:");
        int numberOne = Integer.parseInt(reader.nextLine());

        while ((numberOne >= 0) && (numberOne <= 7)) {
            System.out.print("" + printText() + "\n");
            numberOne--;
        }

    }

    public static String printText() {
        return "In the beginning there were the swamp, the hoe and Java." + "/n";
    }
}

在while循环中调用方法

1 个答案: