Subroutines

Question 1

Features of IDE

Answer 1

Auto-completion, Can view identifiers/avoid spelling mistakes
Syntax Highlighting, Can identify features quickly/use to check code is correct
Stepping, Run one line at a time and check result
Breakpoints, Stop the code at a set point to check value of variable
Watch Window, Check values of variables and how they change during the execution
Error Diagnostics, Locate and report errors/give detail on errors

Question 2

Two types of subroutines

Answer 2

Function - A self-contained section of a program that is designed to return a value
Procedure - Self-contained section of a program that is a defined set of instructions designed to perform a task

Question 3

Difference between Functions and Procedure?

Answer 3

A function is used to calculate something from a given input whilst procedure is the set of commands which are executed in order

Question 4

What is a parameter?

Answer 4

Name of the information we want in a function

Question 5

Difference between passing a parameter by value and reference

Answer 5

By value, is only a copy of the variable that is passed to the subroutine whereas by reference, the address of the variables passed to the subroutine.

Question 6

What is an IDE?

Answer 6

Integrated Development Environment is often used to write a computer programs