You need to have an idea about AWT and component class. AWT have three component class which are Frame, Window and Panel.
Program args : -Xms128M -XX:MaxRAMPercentage=70.0 -Dawt.useSystemAAFontSettings=lcd -Dswing.aatext=true -Djava.util.Arrays ...
Qt Jambi is a new and noteworthy alternative to Swing and Java 2D for developing rich, cross-platform desktop-application interfaces.