使用 switch case 生成计算器的 Java 程序
以下程序接受两个整数 变量,获取一个关于运算的操作符。根据选定的 运算符,程序执行相应的运算并输出结果。
示例
import java.util.Scanner; public class ab39_CalculatorUsingSwitch { public static void main(String args[]) { Scanner sc = new Scanner(System.in); System.out.println("Enter value of 1st number ::"); int a = sc.nextInt(); System.out.println("Enter value of 2nd number ::"); int b = sc.nextInt(); System.out.println("Select operation"); System.out.println("Addition-a: Subtraction-s: Multiplication-m: Division-d: "); char ch = sc.next().charAt(0); switch(ch) { case 'a' : System.out.println("Sum of the given two numbers: "+(a+b)); break; case 's' : System.out.println("Difference between the two numbers: "+(a-b)); break; case 'm' : System.out.println("Product of the two numbers: "+(a*b)); case 'd' : System.out.println("Result of the division: "+(a/b)); break; default : System.out.println("Invalid grade"); } } }
输出
Enter value of 1st number :: 52 Enter value of 2nd number :: 85 Select operation Addition-a: Subtraction-s: Multiplication-m: Division-d: a Sum of the given two numbers: 137
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