java - What Swing layout(s) should I use for this? -

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could please tell me layouts should use make image below? know you'll have use multiple layouts this, i'm having problem don't know main panel layout be, panel containing other panels inside.

please neeed know panel layouts should use make picture below. (the frame stretches , of buttons stretches)

layout

gridbaglayout flexible layout, , can use accomplish example shown.

oracle has great tutorial on how use gridbaglayout. should easy find on google.


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