content: import java.util.Scanner;
  public class JavaExample {
      public static void main(String[] args) {
      	double num1, num2;
          Scanner scanner = new Scanner(System.in);
  
          System.out.print("Enter first number:");        
          num1 = scanner.nextDouble();
  
          System.out.print("Enter second number:");
          num2 = scanner.nextDouble();
  
          System.out.print("Enter an operator (+, -, *, /): ");
          char operator = scanner.next().charAt(0);
          scanner.close();
          double output;
          
          switch(operator)
          {
              case '+':
              	output = num1 + num2;
                  break;
  
              case '-':
              	output = num1 - num2;
                  break;
  
              case '*':
              	output = num1 * num2;
                  break;
  
              case '/':
              	output = num1 / num2;
                  break;
  
              default:
                  System.out.printf("You have entered wrong operator");
                  return;
          }
          System.out.println(num1+" "+operator+" "+num2+": "+output);
      }
  }