The program (or) source code written in java is divided into 5 sections. Namely, 1)     Documentation section 2)     Package statements 3)     Import statements 4)     Interface section 5)     Class section Documentation Section: (optional)                            This section includes comments. It helps to improve the readability of the program. Comments are non-executable statements. It is a simple message which states the purpose of the program and exists only for the programmer.   These comments occur not just in the beginning but anywhere in the program. Package statements: (optional)                            Jav...