Question

您好我刚开始学习java并且遇到一些非常基本的计算问题。这个简单的程序要求用户输入两个值，然后当它运行时我希望它显示“20 + 5 = 25”。但是，我在行"+" num2 "=" num1的这一部分上反复收到“语法错误，删除此令牌”消息。有什么问题？

package ner.cs1451;

import java.util.Scanner;

public class Project01a {
/*This program asks the user to input two values
 *Then computes the following: sum, difference, product, quotient, remainder, and the average.*/

    public static void main(String[] args) {


        Scanner in = new Scanner(System.in);


        System.out.print("Enter the first number: ");
        int num1 = in.nextInt();
        System.out.print("Enter second number: ");
        int num2 = in.nextInt();
        int avg = (num1 + num2)/2;


        System.out.println(num1 "+" num2 "=" num1 + num2);
        System.out.println(num1 "-" num2 "=" num1 - num2);
        System.out.println(num1 "*" num2 "=" num1 * num2);
        System.out.println(num1 "/" num2 "=" num1 / num2);
        System.out.println(num1 "%" num2 "=" num1 % num2);
        System.out.println("The average of your two numbers is: "+avg);

Answer 1

您在尝试连接的所有值之间缺少连接运算符+。 E.g。

System.out.println(num1 + "+" + num2 + "=" + (num1 + num2));

您还希望用括号括起加法，以便在数字之间进行正常加法，而不是连接。

Answer 2

将字符串连接起来：

System.out.println(num1 + "+" + num2 + "=" + (num1 + num2));

基本计算“此行上的多个标记语法错误，删除此标记”

2 个答案: