idea创建计算器
时间: 2023-07-23 13:12:17 浏览: 184
好的,我可以帮您介绍一下如何在 IDEA 中创建一个简单的计算器:
1. 打开 IntelliJ IDEA,创建一个新的 Java 项目。
2. 在项目中创建一个新的 Java 类(例如,Calculator.java)。
3. 在 Calculator 类中定义一个 main 方法,并添加以下代码:
```java
import java.util.Scanner;
public class Calculator {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
System.out.print("Enter the first number: ");
double num1 = scanner.nextDouble();
System.out.print("Enter the second number: ");
double num2 = scanner.nextDouble();
System.out.print("Enter the operator (+, -, *, /): ");
char operator = scanner.next().charAt(0);
double result;
switch (operator) {
case '+':
result = num1 + num2;
break;
case '-':
result = num1 - num2;
break;
case '*':
result = num1 * num2;
break;
case '/':
result = num1 / num2;
break;
default:
System.out.println("Invalid operator");
return;
}
System.out.println(num1 + " " + operator + " " + num2 + " = " + result);
}
}
```
4. 运行程序,输入两个数字和一个运算符(+,-,*,/),然后按回车键即可得到计算结果。
希望这可以帮助您创建一个简单的计算器!
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