import java.util.*;
import java.util.regex.*;
import java.io.*;

public class Capital {
	public static void main(String[]args) throws IOException {

		
	String letterFromMethod;
	boolean capitalResult;
	// call static method 'readLetter()' and place result into 'letterFromMethod'
	letterFromMethod = readLetter();
	System.out.println("The letter entered is " + letterFromMethod);
	// call static method 'checkCapital' and place result into 'capitalResult'
	capitalResult = checkCapital(letterFromMethod);
	System.out.println("Was a capital letter entered?: " + capitalResult);

} //end main method

    // static method to read a letter in from the keyboard
     static String readLetter() throws IOException 
	{
              System.out.println("Enter a letter for the parser.");
              InputStreamReader alphatest = new InputStreamReader(System.in);
              BufferedReader charlietest = new BufferedReader(alphatest);
              String letterTypedIn=charlietest.readLine();
	      return letterTypedIn;
	
	}// end method


// static method to check for capital letters using regex
         static boolean checkCapital(String letterFromMain) { // start method
                 String xray = new String("[A-Z]");
                 Pattern yankee = Pattern.compile(xray);
                 Matcher zulu = yankee.matcher(letterFromMain);
		 boolean result;
                 return result = zulu.matches();
                 } // end method

	
	}// end class