
12.16 Programming Activity 2: Working with Layout Managers 915
3. Add the top and the game panels.
4. Code an appropriate private listener class.
5. Instantiate the listener and register it on the appropriate components.
Instructions
Copy the source files in the Programming Activity 2 directory for this chap-
ter to a directory on your computer.
1. Write the code to declare the needed instance variables. Load the Nest-
edLayoutPractice.java source file and search for five asterisks in a row
(*****). This will position you to the instance variables declaration.
// ***** Task 1: declare a JPanel named top
// also declare three JButton instance variables ...