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Button Question/Issue
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I currently have a program using keyboard input from the user, but am trying to replace keyboard input with onscreen buttons. Does anyone have any information on the best way to do this? I've pasted the code file involved with this (there are other files in the program). I'm not very familiar with java so what I'm finding so far is a bust (some of my attempts are commented out in code). Thanks in advance to anyone able to shed light on this!
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Decide where you want to put the buttons on the GUI, place them there, and add ActionListeners to them. Each new button represents a key that was pressed before. Decide which buttons go with which keys. Say a button called kButton was assigned to do the same thing as what used to happen when the user pressed K on the keyboard. Somewhere in your old code you have a KeyListener and a keyPressed function to go along with it. Within that keyPressed function, some code exists to handle what happens when K is pressed. Copy that code and put it into your new actionPerformed function. Somewhere within actionPerformed you'll want to have a block of code to be executed if kButton was pressed. Paste the code that you just copied from keyPressed into there.
JAVA Syntax (Toggle Plain Text)
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Originally Posted by VernonDozier 
Decide where you want to put the buttons on the GUI, place them there, and add ActionListeners to them. Each new button represents a key that was pressed before. Decide which buttons go with which keys. Say a button called kButton was assigned to do the same thing as what used to happen when the user pressed K on the keyboard. Somewhere in your old code you have a KeyListener and a keyPressed function to go along with it. Within that keyPressed function, some code exists to handle what happens when K is pressed. Copy that code and put it into your new actionPerformed function. Somewhere within actionPerformed you'll want to have a block of code to be executed if kButton was pressed. Paste the code that you just copied from keyPressed into there.
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Thanks, but here's the kicker: HOW do I add the button?? I'm sorry to say I can't get a button to show up on screen at all.
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If it's a class that you CAN add a button to, it'll be something like this:
This particular example comes from code where I created my own class called "Proj1Component", which extended JComponent and implemented ActionListener. I added a JButton called "kButton" to "Proj1Component". An instance of "Proj1Component" was added to a JFrame. This code is from the Proj1Component constructor. kButton is defined in Proj1Component outside of any functions.
JAVA Syntax (Toggle Plain Text)
This particular example comes from code where I created my own class called "Proj1Component", which extended JComponent and implemented ActionListener. I added a JButton called "kButton" to "Proj1Component". An instance of "Proj1Component" was added to a JFrame. This code is from the Proj1Component constructor. kButton is defined in Proj1Component outside of any functions.
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Originally Posted by VernonDozier
If it's a class that you CAN add a button to, it'll be something like this:
JAVA Syntax (Toggle Plain Text)
This particular example comes from code where I created my own class called "Proj1Component", which extended JComponent and implemented ActionListener. I added a JButton called "kButton" to "Proj1Component". An instance of "Proj1Component" was added to a JFrame. This code is from the Proj1Component constructor. kButton is defined in Proj1Component outside of any functions.
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This tutorial has examples of working with the available layout managers: http://java.sun.com/docs/books/tutor...out/index.html
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Originally Posted by Ezzaral
This tutorial has examples of working with the available layout managers: http://java.sun.com/docs/books/tutor...out/index.html
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You can probably use a BorderLayout for the main frame with your main panel in CENTER and a button panel in SOUTH. The button panel could use FlowLayout or GridLayout perhaps. Neither of those is too complex.
GridBagLayout would be more flexible, but it can take a little work to get comfortable with it.
GridBagLayout would be more flexible, but it can take a little work to get comfortable with it.
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Originally Posted by Ezzaral
You can probably use a BorderLayout for the main frame with your main panel in CENTER and a button panel in SOUTH. The button panel could use FlowLayout or GridLayout perhaps. Neither of those is too complex.
GridBagLayout would be more flexible, but it can take a little work to get comfortable with it.
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Maybe something along these lines would work for you
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