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How to calculate the value which contains oparator and operand both using command line argument

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April 4, 2011 at 11:18 AM

import java.util.*;
class Calculator
{
    public static void main(String[] args) 
    {
        boolean exit=false;
        Scanner input=new Scanner(System.in);
        System.out.print("Enter number1: ");
        double num1=input.nextDouble();
        System.out.print("Enter number2: ");
        double num2=input.nextDouble();
        System.out.print("Enter operator: ");
        String op=input.next();
        if(op.equals("+")){
                    double add=num1+num2;
                    System.out.println("Addition="+add);
        }
        if(op.equals("-")){
                    double sub=num1-num2;
                    System.out.println("Subtraction="+sub);
        }
        if(op.equals("*")){
                    double mul=num1*num2;
                    System.out.println("Multiplication="+mul);
        }
        if(op.equals("/")){
                    double div=num1/num2;
                    System.out.println("Division="+div);
        }
    }
}

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