Input Mismatch Error in Java

Question

Hi, I was creating a calculator program, which take the numerator, denominator and the operator as the input and should display the correct output, but I amhaving an Input Mismatch Error. I have searched online but nothing solved the issue. Would anyone be able to solve the issue? Here is the code bit:
https://sololearn.com/compiler-playground/c96n8tjgILRo/?ref=app

Answer 1

Danish Zubair

You can also try this input method

int numerator = sc.nextInt();
int denominator = sc.nextInt();
String operator = sc.next();

Answer 2

You first have to enter the numbers, then the operator – that's how you defined it in your code.

Also, find out about how to compare strings in Java. Your switch statement won't work that way.

Answer 3

Try this

int numerator = sc.nextInt();
int denominator = sc.nextInt();
sc.nextLine();
String operator = sc.nextLine();

The point is that the "nextInt" method scans the string up to the number, i.e. you can enter 2 numbers in one line, and each method will recognize it, but will not go to the next line

Answer 4

Danish Zubair

Strange, everything works for me

What input did you make?

I made the following input
(This is if you added that line of code that I mentioned above)

number
number
operator

Answer 5

Buterbrod:) yeah found the solution, I converted from String type to character type the variable 'operator' and wrote 'sc.next()' and it worked. Thank you so much for helping me.

Answer 6

Buterbrod:) it still shows the same exception error