结对作业

master
xzk 10 months ago
parent 1f866e76a9
commit 0e4fdef419

@ -0,0 +1,54 @@
package xzk;
import java.util.Scanner;
public class Calculator {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
System.out.println("请输入第一个数字:");
double num1 = scanner.nextDouble();
System.out.println("请输入第二个数字:");
double num2 = scanner.nextDouble();
System.out.println("请输入操作符 (+, -, *, /, %):");
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 '/':
if (num2 != 0) {
result = num1 / num2;
} else {
System.out.println("错误:除数不能为零");
return;
}
break;
case '%':
if (num2 != 0) {
result = num1 % num2;
} else {
System.out.println("错误:除数不能为零");
return;
}
break;
default:
System.out.println("无效的操作符!");
return;
}
System.out.printf("%.2f %c %.2f = %.2f", num1, operator, num2, result);
}
}
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