## Java Program to Arithmetic Calculator using switch case Statements

### Description

```Get a binary arthmetic expression and solve the expression.
Input:
12 + 9
Output:
21
Input:
4 * 5
Output:
20```

### Solution

```import java.util.*;
class ArCal
{
public static void main(String args[])
{
int num1,num2;
double output=0;
char operator;
Scanner sc=new Scanner(System.in);
System.out.println("Enter a Binary Expression:");
num1=sc.nextInt();
operator=sc.next().charAt(0);
num2=sc.nextInt();
switch(operator)
{
case '+':
output=num1+num2;
break;
case '-':
output=num1-num2;
break;
case '*':
output=num1*num2;
break;
case '/':
output=num1/num2;
break;
case '%':
output=num1%num2;
break;
default :
System.out.println("invalid operation");
break;
}
System.out.println("The Output Is:"+output);
}
}
```

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### Explanation

```Based on the  choice, instructions in any one of the case will be executed.

Break statement very important in switch.```

#### Author - Ramesh P Natarajan

Software Developer and Technology Trainer, very much passionate in the field of Software Application Development, Machine Learning and Search Engine Optimization.

Write to: [email protected]

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