How to change the image in the upper left corner in a java program [duplicate]

This question already has answers here: How to set Icon to JFrame (12 answers) 开发者_StackOverflow中文版 Closed 6 years ago.

I want to know that how to change the image in the upper left corner in a java program and in the taskbar. See the screenshot to know what i am talking about- http://www.ougfiles.com/dl/303275944/Untitled.jpg

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I think you're looking for Window.setIconImage, where the "window" will probably be a JFrame if this is a Swing app.

Note that there's also Window.setIconImages which allows you to set multiple images, so that it can pick up different resolutions for different situations (e.g. a bigger icon in the Windows task bar than in the frame itself.)

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Use setIconImage() or setIconImages(). The latter lets you specify a list of icons in different resolutions; the most suitable one will be used in each case (desktop, taskbar, title bar of the frame, etc.)

See also the this section in the Java tutorial.

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Quick Google searched revealed a setIconImage for your Frame frame.setIconImage() (oracle.com)