how to check if an input is an integer java
import java.util.InputMismatchException; import java.util.Scanner; public class Number { public static void main(String[] args) { int yourNumber; while(true) { // to read inputs from user Scanner scan = new Scanner(System.in); try { System.out.print("ayy bruh enter you age : "); // throws InputMismatchException if it's not a number yourNumber = scan.nextInt(); scan.close(); break; }catch(InputMismatchException notNumber) { // << catch the exception and print the error message System.err.println("huh I can understand numbers," + "ENTER A NUMBER !"); } } // print the result :)) System.out.printf("so your age is %d, ..AWESOME !! :))", yourNumber); } }
