I'm making a Caesar Cipher program, and I'm trying to change the GUI. I've tried adding a background image (from the comments provided by the user(s) below), but now, nothing shows up (the background image, text boxes, and buttons don't display and I just get a blank window when I run the program). Any help is appreciated!
public CaesarGUI() throws IOException {
setTitle("Caesar Cipher");
setVisible(true);
setDefaultCloseOperation(3);
pack();
setSize(1400, 990);
BufferedImage bg = ImageIO.read(Menu.class.getResource("beach.jpg"));
JLabel label = new JLabel(new ImageIcon(bg));
setContentPane(label);
Container content = getContentPane();
//Changed rows to 0 so it would be filled up before recalculating layout; achieves the horizontal layout
GridLayout layout = new GridLayout(0, 2, 100, 5);
content.setLayout(layout);
inputTA = new JTextArea("Put the word you want to encrypt or decrypt and press the button", 12, 40);
inputTA.setLineWrap(true);
inputTA.setWrapStyleWord(true);
inputTA.setBorder(BorderFactory.createEmptyBorder(4, 4, 4, 4));
JScrollPane scroller = new JScrollPane(inputTA);
scroller.setVerticalScrollBarPolicy(ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS);
content.add(scroller);
outputTA = new JTextArea(12, 40);
outputTA.setLineWrap(true);
outputTA.setWrapStyleWord(true);
outputTA.setBorder(BorderFactory.createEmptyBorder(4, 4, 4, 4));
//Made output box uneditable so that it only displays output
outputTA.setEditable(false);
JScrollPane scroller2 = new JScrollPane(outputTA);
scroller2.setVerticalScrollBarPolicy(ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS);
content.add(scroller2);
JPanel box1 = new JPanel();
box1.setLayout(new FlowLayout());
JButton decryptButton = new JButton("Decrypt");
JButton encryptButton = new JButton("Encrypt");
decryptButton.addActionListener(this);
encryptButton.addActionListener(this);
box1.add(decryptButton);
box1.add(encryptButton);
box1.add(new JLabel("Shift Factor"));
box1.add(this.shiftFactor = new JTextField(20));
content.add(box1);
setResizable(false);
//pack();
}
