import static java.lang.System.out;
import java.util.Scanner;
import java.util.InputMismatchException;

public class ScannerTest {
  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    boolean done = false;
    int n = 0;
    while (!done) {
      try {
        out.print("Please give me an int here: ");
        n = sc.nextInt();  // this can cause InputMismatchException
        done = true;
      }
      catch (InputMismatchException e) {
        out.println("That's not an int.");
        sc.nextLine(); // throw away junk in the current input line
      }
    }
    out.println("You entered " + n);
    sc.close();
  }
}