Rohan Bansal rohan-bansal

## PostfixCalculator.java
import java.util.Stack;
import java.lang.*;


public class PostfixCalculator {

    private static boolean isOperator(char c) {
    return c == '+' || c == '-' || c == '*' || c == '/' || c == '^'
            || c == '(' || c == ')';
    }

## keybase.md

      
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                rohan-bansal
                / keybase.md
            
            
              Created
              September 15, 2019 18:05
            
          
    Keybase proof

I hereby claim:

I am rohan-bansal on github.
I am rohan_bansal (https://keybase.io/rohan_bansal) on keybase.
I have a public key ASC2FRhaea-8ZprQKxutJaTA0m5_nSXwS1gfVdJep5iI2wo

To claim this, I am signing this object:
	import java.util.Stack;
	import java.lang.*;


	public class PostfixCalculator {

	private static boolean isOperator(char c) {
	return c == '+' \|\| c == '-' \|\| c == '*' \|\| c == '/' \|\| c == '^'
	\|\| c == '(' \|\| c == ')';
	}