Member Avatar for Doogledude123

I'm curious, when setting the default close operation for JFrames, should you use JFrame's constants or WindowConstants' constants?

As far as I can tell they're the same. Although, IntelliJ (not tested on other IDE's) prefers WindowConstants' EXIT_ON_CLOSE at least.

So basically my question is, which one should be used? Which do you use? If any, what's the difference?

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  • Latest Post Latest Post by JamesCherrill
Member Avatar for JamesCherrill

JFrame's DISPOSE_ON_CLOSE, DO_NOTHING_ON_CLOSE, HIDE_ON_CLOSE are inherited from WindowConstants (JFrame implements WindowConstants)

EXIT_ON_CLOSE seems a historical oddity - it was first implemented in JFrame in Java 1.3, but then added to WindowConstants in Java 1.4 anyway.

So the answer to your question is: it makes no difference.

Member Avatar for mKorbel

there is significant difference WindowListener is designated for add (code block e.g. closing resources before) control the closing JVM processes in comparing with the JFrame.setDefaultClose....

Member Avatar for JamesCherrill

I don't understand! Why mention WindowListener? The question was about the constant values defined in the two classes.

Edited by JamesCherrill
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