Java Program For Calculator In Java | Arithmetic Operators Example | Practice Problems | Code Bode

Published: 21 May 2020
on channel: CodeBode

21,998

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#calculatorinjava | #Arithmeticoperators example| #javapracticeproblems

Hi guys in this video we will learn how to design calculator in java

import java.util.Scanner;

public class Calculator {

public static void main(String[] args) {
// for calculator in java

// 1. take input numbers and operator from user
// 2. take result variable and initialize to 0
// 3. switch based on operator

Scanner sc = new Scanner(System.in);
double number1 = sc.nextDouble();

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

double number2 = sc.nextDouble();
double result = 0.0;

switch(operator) {
case '+' :
result = number1 + number2;
System.out.println(result);
break;
case '-' :
result = number1 - number2;
System.out.println(result);
break;
case '*' :
result = number1 * number2;
System.out.println(result);
break;
case '/' :
result = number1 / number2;
System.out.println(result);
break;
default :
System.out.println("Invalid operator");
break;

}
}

}

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