Uses of Interface
java.awt.LayoutManager

Packages that use LayoutManager 
Package Description
java.awt
Contains all of the classes for creating user interfaces and for painting graphics and images.
javax.swing
Provides a set of "lightweight" (all-Java language) components that, to the maximum degree possible, work the same on all platforms.
javax.swing.plaf.basic
Provides user interface objects built according to the Basic look and feel.
javax.swing.plaf.metal
Provides user interface objects built according to the Java look and feel (once codenamed Metal), which is the default look and feel.
javax.swing.plaf.synth
Synth is a skinnable look and feel in which all painting is delegated.