import java.io.PrintStream;
import java.util.Scanner;
import java.util.InputMismatchException;

public class Example1
{
    public static void main(String[] args)
    {
	Scanner input = new Scanner(System.in);
	PrintStream output = System.out;

	try
	{
	    output.print("Enter an integer: ");
	    int i = input.nextInt();
	}
	catch (InputMismatchException e)
	{
	    output.println("Invalid input");
	}
    }
}