It/210 Chapter 8 Programming Problems
Programming Problems
For each of the following Programming Problems, use the top-down modular approach and pseudocode to design a suitable program to solve it.
1.
a. Input names of students from the user, terminated by ”ZZZ”,0,0,0, and create a data file grades with records of the following form: student (String), test1 (Integer), test2 (Integer), test3 (Integer)
b. Display the contents of the file grades created in Part a. Each student’s record should appear on a separate line and include the total score (the sum of the three tests) for that student. For example, a line of output might be as follows:
R. Abrams 76 84 82 242
c. Modify the program of Part b so that at the option of the user, it displays either the entire contents of the file grades or just the record of a specified student. In either case, for each student displayed, also display his or her total test score.
2. Assume that a file named inventory, which contains the inventory of parts for the Legendary Lawn Mower Company (from Section 8.5), already exists with records of the following form: partNumber (Integer), partName (String), quantity (Integer)
Also assume that the records in this file are ordered by increasing part number. For each part of this problem, write a program that performs the indicated task.
a. Input a part number from the user and delete the corresponding record from the inventory file.
b. Input a part number and a quantity from the user and modify the record corresponding to that part number by changing the value of its last field to the quantity input.
c. Input a new part number, part name, and quantity from the user and insert the corresponding record in the proper place in the inventory
For each of the following Programming Problems, use the top-down modular approach and pseudocode to design a suitable program to solve it.
1.
a. Input names of students from the user, terminated by ”ZZZ”,0,0,0, and create a data file grades with records of the following form: student (String), test1 (Integer), test2 (Integer), test3 (Integer)
b. Display the contents of the file grades created in Part a. Each student’s record should appear on a separate line and include the total score (the sum of the three tests) for that student. For example, a line of output might be as follows:
R. Abrams 76 84 82 242
c. Modify the program of Part b so that at the option of the user, it displays either the entire contents of the file grades or just the record of a specified student. In either case, for each student displayed, also display his or her total test score.
2. Assume that a file named inventory, which contains the inventory of parts for the Legendary Lawn Mower Company (from Section 8.5), already exists with records of the following form: partNumber (Integer), partName (String), quantity (Integer)
Also assume that the records in this file are ordered by increasing part number. For each part of this problem, write a program that performs the indicated task.
a. Input a part number from the user and delete the corresponding record from the inventory file.
b. Input a part number and a quantity from the user and modify the record corresponding to that part number by changing the value of its last field to the quantity input.
c. Input a new part number, part name, and quantity from the user and insert the corresponding record in the proper place in the inventory