I'm trying to use the try-catch to handle user's input exception. Can someone please help me to figure out why it doesn't work?

Question

Scanner usPick = new Scanner(System.in);
try { int pick = usPick.nextInt(); //user pick
}
catch (InputMismatchException e) {
System.out.println("Input Error"); }
https://code.sololearn.com/cZhc60SBIiEC/?ref=app

Answer 1

That code looks fine to me.

You may be having an issue with the scope of the variable.

Example fix/

int pick;
// enlarging the variables scope

try {
pick = usPick.nextInt();
}
catch(....){
// fail
}

switch (pick){
case 1:
// do stuff with pick
break;
}

Remember if you declare something inside a block, the block is the variables scope.

Example/

if (condition){
int x = 15;

// X can be accessed in here
}

// X cannot be accessed out here

You can also place the switch case that deals with the variable inside the try block.

Answer 2

Thanks a lot for your comment!
I think I managed to solve it, you're welcome to check it up :)