Chapter 2 - Program Correctness and Efficiency

Question 1

Bug

Answer 1

Software defect

Question 2

Types of errors (3)

Answer 2

1. Syntax error
2. Run-time error
3. Logic error

Question 3

Syntax errors

Answer 3

Mistakes using the grammar style, c++ compiler will detect most syntax errors in compilation

Question 4

Run-time error

Answer 4

Occur during program execution when the compiler detects an operation that it knows to be incorrect, most halt the program, ex: division by zero, array out of bounds, null pointer reference

Question 5

Logic error

Answer 5

Occurs when the programmer or analyst makes a mistake in the design of a class, makes a mistake in the design of a class function, or implemented algorithm incorrectly, the code will compile and run but will not meet the requirements

Question 6

Exception handling

Answer 6

Try {
}
Catch () {
}

Question 7

Structured walkthrough

Answer 7

when a designer explains the algorithm or program to other team members and simulates its execution with other team members looking on

Question 8

Levels of testing (4)

Answer 8

1. Unit testing
2. Integration testing
3. System testing
4. Acceptance testing

Question 9

Unit testing

Answer 9

The smallest testable piece of software, a function or class