Mine

import java.io.*;

public class Nested 
{
	public static void main(String[] args) throws IOException
	{
		BufferedReader br = new 
			BufferedReader(new InputStreamReader(System.in));
		
		try
		{
			System.out.println("Enter your login name:");
			String name = br.readLine();

			if (name.equals("Kaluha"))
			{
				System.out.println("Enter your password:");
				String pass = br.readLine();

				if (pass.equals("chicken"))
				{
					System.out.println("Welcome to Kaluha's Cat House!");
				} else {
					System.out.println("Invalid password.");
				}
				
			}
		}
		catch (Exception ex)
		{
			System.out.println("Invalid Name.");
		}
		
	}
}