Implement a class Tape. An instance of Tape represents a video tape that can hold recorded television programs. For each program recorded on a tape, the following properties are of interest:

• the name of the recorded program (a string);
• the length of recorded program in minutes (an integer).

Each tape has a certain capacity (in minutes) and each recorded program starts at a certain position on the tape. The positions are numbered as 0, 1, 2, 3, ... The class Tape should implement the following features:

• the constructor:
  given an integer parameter k, the constructor creates an initially empty tape with a capacity of k minutes;
• the method getResidualCapacity():
  returns the residual capacity of the tape in minutes;
• the method getNumberOfPrograms():
  returns the number of recorded programs;
• the method record():
  given as parameters the name and the length of a program, record() appends the program to the tape - if there's not enough space left to contain the program a RuntimeException should be thrown;
• the method getProgram():
  given the position n on the tape, getProgram() returns the program recorded at that position - if there is no program recorded at that position a RuntimeException should be thrown;
• the method getLength():
  given the position n on the tape, getLength() returns the length in minutes of the program recorded at that position - if there is no program recorded at that position a RuntimeException should be thrown;

Part 1
Implement a class Tape using a linked list to store informations about the programs on the tape.

Solution: representation of the objects, skeleton of the class, class Tape

Part 2
Implement a client class for Tape. It should have a static method that, given a Tape instance and a file name as parameters, writes the program listing (name and length of each recorded program) to the file. The static method should also write the total length of all recorded programs and the residual capacity of the tape to the same file.

Solution

Part 3
Implement a test program that creates a Tape, records a few programs on it and then calls the static method from part 2 to write the tape's information to a file.

Solution