如何打开特定的Jframe作为主要的Jframe？

Question

when I run the project compiler says BUILD SUCCESSFUL but not any window is appear. when I runt the project I want to start main_window as a default window. but I have no Idea how to setting up this.

Answer 1

If you are creating a jar file (as I assume you will be doing from your previously deleted question), the main class would be specified by the jar file's manifest.

eg, the manifest file, named MANIFEST.MF could contain a line looking like:

Main-Class: gui.main_window

Answer 2

Right Click on the Netbeans tool-bar . An drop down menu should appear. Select Customize and scroll down through the options until you see Run File . Drag the button onto the tool-bar . Now select the main_window.java and hit the Run File button.

The IDE should run only the file.