import java.util.*;
import javax.swing.JOptionPane;
 
 
public class guessing2
{
static Scanner console = new Scanner(System.in);
 
private static boolean isNumeric(String checkStr)
// determine if string is numeric
{
	try{
		Integer.parseInt(checkStr);
		return true; //Did not throw, must be a number
	}catch(NumberFormatException err){
		return false; //Threw, So is not a number
	}
}
public static void main (String[] args)
{
 
	int numGuesses = 0, uiInt = 0;
	boolean done = false;
	int rndNum = (int)(10.0 * Math.random());
	String uiStr = "", rndGuess = ""; 
	char firstChar;
	String[] Letters = {"A", "B", "C", "D", "E", "F", "G", "H", "I", "J"};
	rndGuess = Letters[rndNum];
 
	while ((numGuesses < 3) && !done)
	{
		uiStr = JOptionPane.showInputDialog("Please enter a letter beween A-J or number between 1-10");
		uiStr = uiStr.toUpperCase();
		if(isNumeric(uiStr))
		// check if user input was numeric
		// parse string input to integer and subtract 
		// one in order to compare with rndNum
		// retrieve letter based on numeric input to 
		// compare against rndGuess
		{
			uiInt = Integer.parseInt(uiStr) - 1;
			uiStr = Letters[uiInt];
		}
		else
		{
		// if is isn't numeric pull first character 
		// from user input into firstChar
		// then based on that store the numeric value 
		// in uiInt for comparison with rndNum
			firstChar = uiStr.charAt(0);
			switch(firstChar)
			{
			case 'A':
				uiInt = 0;
				break;
			case 'B':
				uiInt = 1;
				break;
			case 'C':
				uiInt = 2;
				break;
			case 'D':
				uiInt = 3;
				break;
			case 'E':
				uiInt = 4;
				break;
			case 'F':
				uiInt = 5;
				break;
			case 'G':
				uiInt = 6;
				break;
			case 'H':
				uiInt = 7;
				break;
			case 'I':
				uiInt = 8;
				break;
			case 'J':
				uiInt = 9;
				break;
			default:
				JOptionPane.showMessageDialog(null, "Invalid Character Input", "Invalid Input", JOptionPane.INFORMATION_MESSAGE);
				done = true;
				break;
			}
		}
 
			if (uiInt < rndNum | uiStr.compareTo(rndGuess) < 0)
				JOptionPane.showMessageDialog(null, "You're too low!", "Failure", JOptionPane.INFORMATION_MESSAGE);
			else
			if (uiInt > rndNum | uiStr.compareTo(rndGuess) > 0)
				JOptionPane.showMessageDialog(null, "You're too high!", "Failure", JOptionPane.INFORMATION_MESSAGE);
			else
				JOptionPane.showMessageDialog(null, "Congratulations you guessed it", "Congratulations", JOptionPane.INFORMATION_MESSAGE);
				done = true;
			numGuesses++;
		} //end while
 
	if (numGuesses == 3)
		JOptionPane.showMessageDialog(null, "You lose, Too many Tries, Correct Letter = " + Letters[rndNum] + " and Correct Number = " + rndNum++, "Failure", JOptionPane.INFORMATION_MESSAGE);
	}
	}