Note that there are some explanatory texts on larger screens.

plurals
  1. POJFrame coming up blank
    text
    copied!<p>I've played around with the code a ton in order to try to stumble across the problem, but i'm completely clueless as to where i'm going wrong. Only been programming in java for a few months, so still really new to it. </p> <pre><code> package eliminationgame; import javax.swing.*; import javax.swing.JFrame; import java.awt.event.*; import java.awt.GridLayout; import java.awt.BorderLayout; public class EliminationGame extends JFrame implements ActionListener{ // creates buttons that represent numbers to be eliminated JButton numberOne = new JButton("1"); JButton numberTwo = new JButton("2"); JButton numberThree = new JButton("3"); JButton numberFour = new JButton("4"); JButton numberFive = new JButton("5"); JButton numberSix = new JButton("6"); JButton numberSeven = new JButton("7"); JButton numberEight = new JButton("8"); JButton numberNine = new JButton("9"); JButton numberTen = new JButton("10"); JButton numberEleven = new JButton("11"); JButton numberTwelve = new JButton("12"); // creates buttons for rolling dice, resetting game and opening instructions JButton rollDice = new JButton("Roll Dice"); JButton resetGame = new JButton("Reset"); JButton gameInstructions = new JButton("How to Play"); // creates array to hold previous game scores, and an integer to hold current game int[] previousScores; int currentScore = 78; // creates lables for current score, previous scores, and both dice JLabel displayCurrentScore = new JLabel("Current Score: " + currentScore ); JLabel displayPreviousScores = new JLabel("Previous Scores: "); JLabel diceOne = new JLabel(); JLabel diceTwo = new JLabel(); JPanel pnlEast; JPanel pnlSouth; JPanel pnlWest; JPanel pnlCenter; JFrame appWindow; public void EliminationGame() { // sets roll dice to be the default button //appWindow.getRootPane().setDefaultButton(rollDice); // creates components and panels pnlEast = new JPanel(); pnlSouth = new JPanel(); pnlWest = new JPanel(); pnlCenter = new JPanel(); pnlEast.setLayout(new GridLayout(3,3)); pnlEast.add(numberOne).setEnabled(false); pnlEast.add(numberTwo).setEnabled(false); pnlEast.add(numberThree).setEnabled(false); pnlEast.add(numberFour).setEnabled(false); pnlEast.add(numberFive).setEnabled(false); pnlEast.add(numberSix).setEnabled(false); pnlEast.add(numberSeven).setEnabled(false); pnlEast.add(numberEight).setEnabled(false); pnlEast.add(numberNine).setEnabled(false); pnlEast.add(numberTen).setEnabled(false); pnlEast.add(numberEleven).setEnabled(false); pnlEast.add(numberTwelve).setEnabled(false); pnlSouth.setLayout(new GridLayout(1,3)); pnlSouth.add(resetGame); pnlSouth.add(rollDice); pnlSouth.add(gameInstructions); pnlWest.setLayout(new GridLayout (1,3)); pnlWest.add(displayCurrentScore); pnlWest.add(displayPreviousScores); pnlCenter.setLayout(new GridLayout (1,3)); pnlCenter.add(diceOne); pnlCenter.add(diceTwo); // adds action listener to buttons numberOne.addActionListener(this); numberTwo.addActionListener(this); numberThree.addActionListener(this); numberFour.addActionListener(this); numberFive.addActionListener(this); numberSix.addActionListener(this); numberSeven.addActionListener(this); numberEight.addActionListener(this); numberNine.addActionListener(this); numberTen.addActionListener(this); numberEleven.addActionListener(this); numberTwelve.addActionListener(this); rollDice.addActionListener(this); gameInstructions.addActionListener(this); resetGame.addActionListener(this); appWindow = new JFrame("Elimination"); appWindow.add(pnlSouth, BorderLayout.SOUTH); appWindow.add(pnlWest, BorderLayout.WEST); appWindow.add(pnlCenter, BorderLayout.CENTER); appWindow.add(pnlEast, BorderLayout.EAST); appWindow.pack(); appWindow.setVisible(true); } public static void main(String[] args) { EliminationGame g1 = new EliminationGame(); g1.pack(); g1.setVisible(true); } public void actionPerformed(ActionEvent thisEvent) { String strButtonName = thisEvent.getActionCommand(); if (strButtonName.equalsIgnoreCase("numberOne")) { currentScore = currentScore - 1; numberOne.setEnabled(false); } else if (strButtonName.equalsIgnoreCase("numberTwo")) { currentScore = currentScore - 2; numberTwo.setEnabled(false); } else if (strButtonName.equalsIgnoreCase("numberThree")) { currentScore = currentScore - 3; numberThree.setEnabled(false); } else if (strButtonName.equalsIgnoreCase("numberFour")) { currentScore = currentScore - 4; numberFour.setEnabled(false); } else if (strButtonName.equalsIgnoreCase("numberFive")) { currentScore = currentScore - 5; numberFive.setEnabled(false); } else if (strButtonName.equalsIgnoreCase("numberSix")) { currentScore = currentScore - 6; numberSix.setEnabled(false); } else if (strButtonName.equalsIgnoreCase("numberSeven")) { currentScore = currentScore - 7; numberSeven.setEnabled(false); } else if (strButtonName.equalsIgnoreCase("numberEight")) { currentScore = currentScore - 8; numberEight.setEnabled(false); } else if (strButtonName.equalsIgnoreCase("numberNine")) { currentScore = currentScore - 9; numberNine.setEnabled(false); } else if (strButtonName.equalsIgnoreCase("numberTen")) { currentScore = currentScore - 10; numberTen.setEnabled(false); } else if (strButtonName.equalsIgnoreCase("numberEleven")) { currentScore = currentScore - 11; numberEleven.setEnabled(false); } else if (strButtonName.equalsIgnoreCase("numberTwelve")) { currentScore = currentScore - 12; numberTwelve.setEnabled(false); } else if (strButtonName.equalsIgnoreCase("resetGame")) { currentScore = 78; numberOne.setEnabled(false); numberTwo.setEnabled(false); numberThree.setEnabled(false); numberFour.setEnabled(false); numberFive.setEnabled(false); numberSix.setEnabled(false); numberSeven.setEnabled(false); numberEight.setEnabled(false); numberNine.setEnabled(false); numberTen.setEnabled(false); numberEleven.setEnabled(false); numberTwelve.setEnabled(false); } else if (strButtonName.equalsIgnoreCase("gameInstructions")) { } else if (strButtonName.equalsIgnoreCase("rollDice")) { } } } </code></pre>
 

Querying!

 
Guidance

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload