Thread: button

Hi, I try to make Button in separate class.

I don't undersatnd where to put this part of code

	panel.add(Button.draw);

//

public class Panel
{
	public Panel()
	{
		// draw panel
 
		JFrame frame = new JFrame();
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		frame.setSize(300, 200);
		frame.setTitle("Parking simulation panel");
 
		frame.setLayout(new BorderLayout());
 
		JPanel panel = new JPanel(new FlowLayout());
		frame.add(panel); // add panel on the frame
 
		frame.setVisible(true);
	}
 
	public void addOnPanel (JButton button) {
 
	}
}
 
 
public class Button
{
	private int ButtonName;
	private String ButtonDesc;
 
 
	public Button(int ButtonName, String ButtonDesc) {
		this.ButtonName = ButtonName;
		this.ButtonDesc = ButtonDesc;
		draw(ButtonName);
	}
 
 
	public JButton draw(int ButtonName)
	{
		JButton button = new JButton();
		button.setText("some text");
		button.setBackground(Color.BLUE);
 
		return button;
	}
}

Just as you created an instance of the JFrame and an instance of the JPanel in the Panel() constructor, you must also create an instance of the Button,

Button button = new Button(); // using the proper constructor call

You will then add button to the panel almost as you've indicated in your question, except you'll use the instance button, and 'draw' is not a proper method call. It should be:

panel.add( button.draw() );

This is probably an exercise to learn about Swing by playing around with many things at once, but the design and especially the variable naming is very odd. Why don't you find some good tutorials, like those Oracle offers, and work through those?

If I'm wrong, and this work is being done for an academic assignment, I'd be curious to know what the assignment is to determine if what you're doing is appropriate.

I'm trying to write a small program that I thought out myself. I want to have a button "make new button". When I click it, the new object Button should be done and added on the frame. The problem is just with how new button will add yourself on the screen.

What did you mean "like those Oracle offers"?

Like those Oracle offers: Swing Tutorials/Threads. There are many others covering most topics in Core Java and several beyond. Ignore the bias in the Swing tutorials towards using the GUIBuilder in Netbeans as the way to learn and use Swing. Keep learning to code Swing "by hand."

I don't know why new Swing users or budding GUI designers often think it's a cool idea to pop components in and out of their user interfaces. It's not especially pleasant to the user to have interface controls coming and going, but it also complicates the interface for little to no value that I can see. But that's me.

You'll want to check out a JFrame's default layout and where items are added to that layout by default. You can find these topics covered in the JFrame API or in the Oracle tutorials.