JFrameBuilder 

JFrameBuilder is an easy-to-use visual Java GUI Builder for Java Swing applications. It enables Java developers to create sophisticated GUI applications using drag-and-drop interface without spending a lot of time writing code.
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Eltima Java/SWING Components 

Eltima Java/SWING Components add lots of new styles to the standard set of visual components library to make your software look different. The newest feature is Table Navigation Toolbar which lets you insert, duplicate and delete entries and more.
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