My java program won't run, the only thing that comes up is in the console. Could you please tell me what I'm doing wrong and how to fix it?

import javax.swing.JOptionPane; import java.util.Random;

public class RandomNumberGuessingGame{

public static void main( String [ ] args ) { Random randomObjectNumber = new Random(); int RandomNumber = randomObjectNumber.nextInt( 101 ); boolean NumberEnteredCorrect = false; String userInput; int NumberUserGuessed; int NumberOfTimeUserGuessed = 0; while( NumberEnteredCorrect ) { NumberOfTimeUserGuessed = NumberOfTimeUserGuessed + 1; userInput = JOptionPane.showInputDialog( " Guess the number: " ); NumberUserGuessed = Integer.parseInt ( userInput ); if( NumberUserGuessed > RandomNumber ) { JOptionPane.showMessageDialog( null, " To high, try again" ); }//End of If statement else if(NumberUserGuessed < RandomNumber ) { JOptionPane.showMessageDialog( null, " To low, try again" ); }//End of else if statement else { JOptionPane.showMessageDialog( null, " Good job you guessed the number right."+ NumberOfTimeUserGuessed + " Tries"); NumberEnteredCorrect = true; }//End else statement }//End of while loop System.exit( 0 );

}//End class

}//End main