java - 当我创建方法时，我的 Java 代码显示编译器错误

Question

package aj;

import java.util.Scanner;

public class ConvertingNumber {

    public static void main(String[] args) {

        Scanner a = new Scanner(System.in);
        System.out.println("Enter the Number");
        int num = a.nextInt();
        System.out.println("Enter the base for the given number");
        int base = a.nextInt();
        converting(num,base);

        public static int converting(int num , int base) {

            String sum="";

            while(num > 0) {
                int rem = 0;
                rem = num % base;
                num = num / base;
                sum = rem + sum;
            }

            System.out.println(sum);
        }   
    }
}

对于我上面的java代码，我收到编译器错误说:

Exception in thread "main" java.lang.Error: Unresolved compilation problems: 
The method converting(int, int) is undefined for the type ConvertingNumber
void is an invalid type for the variable converting
Syntax error on token "(", ; expected
Duplicate local variable num
Syntax error on token ",", ; expected
Duplicate local variable base
Syntax error on token ")", ; expected
at aj.ConvertingNumber.main(ConvertingNumber.java:12)

请任何人帮我解决这个问题。提前致谢。

Answer 1

转换方法应该位于主方法之外

package aj;

import java.util.Scanner;

public class ConvertingNumber {
    public static void main(String[] args) {
        Scanner a=new Scanner(System.in);
        System.out.println("Enter  the Number");
        int num=a.nextInt();
        System.out.println("enter the base for the given number");
        int base=a.nextInt();
        converting(num,base);
    }

    //This method should be out side the main method
    public static void converting(int num , int base) {
        String sum="";
        while(num>0) {
            int rem=0;
            rem=num%base;
            num=num/base;
            sum=rem+sum;
        }
        System.out.println(sum);

    }   

}