Errors and Corrections

Question 1

What is debugging?

Answer 1

The process of spotting and correcting mistakes

Question 2

What is a logic error?

Answer 2

When code doesn’t make sense (e.g. My pencil just rode a bike to London)

Question 3

Why can logic errors only be spotted by the programmer?

Answer 3

The computer will just do exactly as it has been told

Question 4

What is a syntax error caused by?

Answer 4

Caused by using incorrect grammar for that particular language

Question 5

What are 7 common examples of syntax errors?

Answer 5

Missing end of line marker
Missing bracket
Missing end of string marker
No return statement in a procedure
Incompatible data type
Using = when == should have been used
Not closing WHILE and FOR loops properly

Question 6

What are 5 debugging methods?

Answer 6

Comments
Debugging outputs
Break points
Single-stepping
Test code

Question 7

What is a run time error?

Answer 7

Run time errors only show up as the program is actually running

Question 8

What are 3 common examples of run time errors?

Answer 8

Overflow error
Stack Overflow error
Calling an absent library procedure

Question 9

When is an overflow error caused?

Answer 9

When a value is too big to be stored in the memory the program has assigned to hold it

Question 10

When is a stack overflow error caused?

Answer 10

If a program tries calling too many functions at once, the stack (a temporary store) will get too full and the program won’t know where to return to