How to Use GridLayout (The Java™ Tutorials > Creating a GUI With Swing > Laying Out Components Within a Container)
Java – FlowLayout in AWT
java - add controls vertically instead of horizontally using flow layout - Stack Overflow
LayoutManagers The LayoutManagers are used to arrange components in a particular manner. LayoutManager is an interface that is implemented by all the classes. - ppt download
Solved Exercise 1: A Simple GUI with different layout | Chegg.com