I'm learning how to make simple JFrame's and I did something wrong. I'm sure it's a quick fix. If somebody could tell me the things I'm doing wrong, I would greatly appreciate it. Thanks.
Oh... also... could you check up on this and tell me if they follow good practice? (Besides their naming conventions which I can easily tell are terrible.)
My class's code:
FlowLayout flow = new FlowLayout();
JPanel pan;
JFrame fra;
JButton but = new JButton();
JLabel lab = new JLabel();
public MainScreen(){
gui();
}
public void gui(){
fra = new JFrame("ATR Utilities");
fra.setVisible(true);
fra.setSize(400, 600);
fra.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
pan = new JPanel(flow);
pan.setBackground(Color.CYAN);
but = new JButton("Test");
lab = new JLabel("Test label");
pan.add(but);
pan.add(lab);
}
public static void main(String[] args){
new MainScreen();
}
You aren't adding your panel to your frame, and you should add everything before you make it visible.
public void gui() {
fra = new JFrame("ATR Utilities");
fra.setSize(400, 600);
fra.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
pan = new JPanel(flow);
pan.setBackground(Color.CYAN);
but = new JButton("Test");
lab = new JLabel("Test label");
pan.add(but);
pan.add(lab);
fra.add(pan);
fra.setVisible(true);
}
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