Calc.java

// Java program for simple calculator 

import java.io.*; 
import java.lang.*; 
import java.lang.Math; 
import java.util.Scanner; 
public class BasicCalculator { 

	public static void main(String[] args) 
	{ 
		// stores two numbers 
		double num1, num2; 

		// Take input from the user 
		Scanner sc = new Scanner(System.in); 

		System.out.println("Enter the numbers"); 

		// take the inputs 
		num1 = sc.nextDouble(); 

		num2 = sc.nextDouble(); 

		System.out.println("Enter the operator (+,-,*,/)"); 

		char op = sc.next().charAt(0); 

		double o = 0; 

		switch (op) { 

		// case to add two numbers 
		case '+': 

			o = num1 + num2; 

			break; 

		// case to subtract two numbers 
		case '-': 

			o = num1 - num2; 

			break; 

		// case to multiply two numbers 
		case '*': 

			o = num1 * num2; 

			break; 

		// case to divide two numbers 
		case '/': 

			o = num1 / num2; 

			break; 

		default: 

			System.out.println("You enter wrong input"); 

			break; 
		} 

		System.out.println("The final result:"); 

		System.out.println(); 

		// print the final result 
		System.out.println(num1 + " " + op + " " + num2 
						+ " = " + o); 
	} 
}