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Tag: swing

Java JTable getting the data of the selected row

Are there any methods that are used to get the data of the selected row? I just want to simply click a specific row with data on it and click a button that will print the data in the Console. Answer http://docs.oracle.com/javase/7/docs/api/javax/swing/JTable.html You will find these methods in it: Use a mix o…

Java GUI Calculator

My JTextArea does not display and no errors or problems shows up. It’s a Java GUI Calculator. Main class code: Calculator code: Any suggestions on improvements to the code? Answer You’re adding your JTextArea, text, to your screen JPanel, but you’re adding screen to nothing, and so it makes …

Java JScrollPane scrolls to bottom… almost

I have a ScrollPane with a JPanel in my Java program that gets alot of text appended. I need the ScrollPane to scroll to the very bottom after every addition. My problem with the following code is that it scrolls “almost” to the bottom but not all the way. Any ideas as to what I am doing wrong? An…

java swing component cannot be resolved

I took the following code from a tutorial: The f.add(l); is highlighted and two errors are shown: The method add(Component) in the type Container is not applicable for the arguments (JLabel) The type javax.swing.JComponent cannot be resolved. It is indirectly referenced from required .class files Being relati…

JavaFx equivalent of Swing JFrame

I am learning JavaFX. I have encountered a problem; I cannot figure out what is the equivalent of a Swing JFrame in JavaFX. Is it the Scene or the Stage? Answer The equivalent of a Swing JFrame in JavaFX is the Stage class which extends from Window and can be made visible by calling show() method. The Scene i…

How can I remove border on JLabel?

So I am trying to start a graphics program, where I have a JFrame that holds multiple JPanels. The JPanels need to combine to create 1 image, however when I run my program I see borders around the images. I cannot quite distinguish if the border is caused by the JLabel that holds the image or if it is because

Login dialog window won’t dispose completely

I’ve got a dialog window for logging in a user to a main program in Java. I’ve recently discovered, however, that if the user clicks the “Cancel” button or the window’s native Close button, the program still runs, even if the login window itself has been disposed of. I have to fo…