Make a JLabel (and obviously how to add it to a JFrame...)

**watachiaieto** · 05-23-2012, 08:10 AM

Swing is one of the most complicated graphical design languages you will ever learn. The code to make a simple frame is probably beyond the scoop of a beginner Java programmer.
The code is so hard that this tutorial will all be dedicated to making a JFrame.
Here is the code:

Java Code:

JFrame frame = new JFrame("Title");
frame.setVisible(true);

And if you want to get REALLY complicated for programs later on where there will be ActionListeners...

Java Code:

public class MyFrame extends JFrame
{
     this.setVsible(true);
}

Oh, you want a combination of the two?

Java Code:

public class MyFrame extends JFrame
{
     JFrame frame = this;
     frame.setVsible(true);
}

Contrary to how people make swing seem, it is easy.

**watachiaieto** · 05-23-2012, 08:18 AM

What is a JLabel? Well what is a label at a store?

The JLabel holds text, and all you have to do is stick the JLabel onto the JFrame, kind of like the people at walmart stick labels onto the shelves.

So the constructor for a JLabel is pretty simple...

Java Code:

JLabel label = new JLabel("Text on the JLabel");

Now how to you add it to a JFrame? With one line of code
(Of course I am going to give a whole example though...)

Java Code:

JFrame window = new JFrame("JLabel Tutorial");
JLabel windowsticker = new JLabel("I am sticking to the window, with text!!!");
window.add(windowsticker);
window.setVisible(true);

Doesn't that seem kinda intuitive to add a window sticker to a window?
Good, I'm glad you think so too :D

**DarrylBurke** · 05-23-2012, 08:30 AM

Removed from Java Example -> Swing. Please review the Forums page, where you can read, in the heading for the "Learn Java" section (emphasis added):

Learn Java programming with our Java tutorials and tips. Attention: Only forum staff can post to these forums!

Did you have a question or did you just want to share a couple of uncompilable code snippets?

db

edit Merged another thread started in the wrong section, with even worse code.

**watachiaieto** · 05-23-2012, 08:38 AM

Buttons are something we use in programs, and so they are something we make in Java code.
Here is how you make a button

Java Code:

JButton notalever = new JButton("Push me, don't pull! I am a button...");

Now lets put it together...
public class Machine extends JFrame

Java Code:

{
     this.setTitle("I Do Work!");
     JButton dosomething = new JButton("Push me, I guarantee the window is lying through it's teeth (buttons...)!");
     this.add(dosomething);
     JFrame machine = this;
     machine.setVisible(true);
     this.pack();
}

So basically I used machine and this interchangeably - that is TERRIBLE programming... consistency is the key.
That was just so people could see the different things that you can do to modify a JFrame's state
I will say that I PERSONALLY like to assign this to an object name just to prevent confusion with other classes and other pieces inside of it.

I also used the pack() method - it is used to make the JFrame JUST big enough so that everything fits snuggly.

**watachiaieto** · 05-23-2012, 08:51 AM

The "Java > Examples > Swing " was hopelessly empty. I was just trying to fill the null space.

I did not have a question when I wrote the thread, but now I would love to know how to delete my own thread. Otherwise (if I am unable to do so) I would like to request you do it for me.

**watachiaieto** · 05-23-2012, 08:59 AM

OH! and I have one more thread in there from before I noticed you removing them...

**DarrylBurke** · 05-23-2012, 09:18 AM

That's ok, I've merged it here too.

With due respect for your intentions, you have not reached a stage in your learning Swing that qualifies you to advise others. There are perfectly good tutorials on the Oracle site, linked from the API for most of the Swing classes.

Please acknowledge that you have seen and read this, after which I will removed this thread.

db