Core Java · interview question
What will happen if you try to read an integer input using Scanner's nextInt() when the input is non-numeric?
Multiple choiceHardchapter-1-curatedpremiumcore-javaconsole-input-and-output
Scanner scanner = new Scanner(System.in);
try {
int number = scanner.nextInt();
} catch (InputMismatchException e) {
System.out.println("Please enter a valid number.");
}Answer and explanation
Correct answer
C. It throws an InputMismatchException.
Why
The 'nextInt()' method expects numeric input. If the input is non-numeric, it will throw an 'InputMismatchException', indicating that the input does not match the expected type.
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