如何实现双类型方法

Question

实现一个由两个双精度类型数字传递的方法，打印出它们的总数并且不返回任何内容。伙计们，现在看起来怎么样？？？

导入 java.util.Scanner; 公共类 Tutorial1 {

public static void main1(double num1, double num2)
{
    double numb1=3.5;
    double numb2=3.4;
    double total = numb1 + numb2;
    Scanner reader = new Scanner (System.in);
    System.out.println(total);
    numb1 = reader.nextInt();
    numb2 = reader.nextInt();

}

Answer 1

我不明白你想要什么，试试这个希望对你有帮助

import java.util.Scanner;
public class MyFirstJavaProgram {

    public static void main(String []args) {

       main1(3.65,2.85);
    }
    public static double main1 (double numb12, double numb21){
    int numb1 = 0, numb2 = 0;
    int total = numb1 + numb2;
    Scanner reader = new Scanner(System.in);
    System.out.println("Enter two integers: ");
     numb1 = reader.nextInt();
     numb2 = reader.nextInt();
    System.out.println(total+numb1+numb2);
    return total+numb1+numb2;
    }
}