I am using the JPopupMenu in response to a button being pressed. The popup menu shows when I press the button, but if I move the frame which the test app sits in, the popup menu disappears. Why is this and how can I fix it?
Popup menus will only appear when you click on the item that generates the
popup menu. When you click on another component, Java assumes that you
no longer want to work with the popup menu and therefore
An old method to applying the Singleton pattern in your Java code is to check if a static instance, defined in the same class that needs to be instantiated once and only once, is null and then create a new instance; otherwise, the pre-existing insta…
For beginner Java programmers or at least those new to the Eclipse IDE, the following tutorial will show some (four) ways in which you can import your Java projects to your Eclipse workbench.
While learning Java can be done with…