CODEWITHSUNDEEP
javaswingsplash-screen
PlainOldProgrammer
PlainOldProgrammer

Reputation: 2931

How Java SplashScreen works?

I need to implement a SplashScreen in java, and i'm currently learning from How to Create a Splash Screen but there is paragraph that says

Fortunately, Java™ SE 6 provides a solution that allows the application to display the splash screen much earlier, even before the virtual machine starts. A Java application launcher is able to decode an image and display it in a simple non-decorated window.

How is possible that java run the SplashScreen even if virtual machine starts if SplashScreen is a java class?

Upvotes: 4

Views: 1052

Answers (1)

Lasse Meyer
Lasse Meyer

Reputation: 1479

If you define the splash screen in your jar MANIFEST-file, it is loaded and displayed with native code before the Java VM is started. No need to load a class in that case. Later, you can get the SplashScreen instance to edit and/or close it.

Manifest entry:

SplashScreen-Image: images/splash.gif

Or command line option:

-splash:images/nnn.gif

Java Platform, Standard Edition (Java SE, formerly known as J2SE) version 6, provides a solution that allows the application to show the splash screen much earlier, even before the virtual machine starts. Now, a Java application launcher is able to decode an image and display it in a simple nondecorated window.

Source: http://www.oracle.com/technetwork/articles/javase/splashscreen-135938.html

Upvotes: 5

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