How to know that input is string or int

Question

I want int as input in my program but what if someone enter strring as input than. How can i hide the error.

Answer 1

You will be using Try and Catch

It's very simple, it goes like this:

int input;
try{
input = scan.nextInt();
}
catch(Exception e){
System.out.println("Please enter a number!");
}

So you tell the program to TRY and do something, but if there's an error it should then CATCH the EXCEPTION and execute another code.

Here's an example in Playgrounds:

https://code.sololearn.com/cr7G4ehQdC72/?ref=app

Answer 2

It's called exception handling, demonstrated perfectly by @Limitless.

Answer 3

#@ Pankaj

see this
this code tells you 4 possible input types
1) if it is an integer
2) if it is a float
3) if it is a char but not an integer
4) if it is a string

https://code.sololearn.com/c1Hr3uQYwwEy/?ref=app