Week 5

Question 1

4 selection structure?

Answer 1

1. simple selection (Simple if statement)
2. simple selection with null false branch (null else statement)
3. combined selection (combined if statement)
4. nested selection (nested if statement)

Question 2

Each solution algorithms will be consist of:

Answer 2

1. Defining the problem
2. The control structures required
3. The solution algorithm
4. Desk checking

Question 3

3 subordinate modules dari general solution algorithm?

Answer 3

1. An initial processing module, terdiri dari step-step yang akan dijalankan pertama kali, sebelum loop dimulai.
2. A processing module inside the loop containing all steps neccessary to process one record or piece of data
3. A final processing module, terdiri dari step-step yang dijalankan pada akhir dari algoritma, diluar loop

Question 4

General algorithms for common business problems ada 4:

Answer 4

1. Report generation with page break
2. single level control break
3. multiple level control break
4. sequential file update

Question 5

Benefit of modular design. ada 4

Answer 5

–  Ease of understanding : each module should perform just one function
–  Reusable code : modules used in one program can also be used in other programs
–  Elimination of redundancy : using modules can help to avoid the repetition of writing out the same segment of code more than once
–  Efficiency of maintenance : each module should be self- contained and have little or no other modules within the program