I am running Windows. When you run an application on Windows, you get a button task bar where you can click it to maximize and minimize it. Is it possible to create a JFrame without this or some other component that has the functionality of a JFrame but without adding it to the task bar.
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Use a JDialog instead of a JFrame. On a JDialog, you can set the ‘modal’ property, which means no ‘upper bar’ or anything is displayed.
Do make sure the JDialog has no parent frame or anything though: a modal JDialog will block the GUI of any parent GUI component. But if you just use it as your main component there is no problem 🙂