how can we distinguish b/c general purpose and top level containers?

how can we distinguish b/c general purpose and top level containers?plzzz help me out
[92 byte] By [razaa] at [2007-10-3 2:51:56]
# 1
May be this will help u out http://www.ictp.trieste.it/~manuals/programming/Java/tutorial/uiswing/components/components_pics.html
coolest_head_2ka at 2007-7-14 20:40:50 > top of Java-index,Java Essentials,New To Java...