INF1B: Week 2: Arrays; Functions

Week Highlights

By the end of this week, you should understand:

- From lecture 3:

• What arrays are
• How to declare, create and initialise an array
• Shorthand syntax for initialising arrays
• What vector dot products are
• How to create two-dimensional arrays
• Matrix addition and multiplication
• What enhanced for loops are

- From lecture 4:

• Why functions are important
• Five benefits of splitting programs into functions
• The anatomy of a java function
• How functions control the flow of execution in a program
• How pass by value works
• What the signature of a java function is
• How breaking a complex process down into discrete steps can simplify coding

Lecture 3: Arrays

• Slides: 03-arrays.pdf

Lecture 3 ➡ Java Tutorial:

• Come back to Chapter 3. Language Basics, section on Variables and read subsection on Arrays.

Lecture 4: Functions

• Slides: 04-functions.pdf

Lecture 4 ➡ Java Tutorial:

• Read the first two sections of Chapter 2 Object-Oriented Programming Concepts carefully now, but stop at Inheritance.
• Read the first part of Chapter 4 Classes and Objects, stopping at Objects.

Tutorial: 

No tutorial

Lab exercises

This week's lab exercises cover Boolean expressions, conditionals and loops. There are four warmup exercises, five core exercises, and three optional exercises for this week.

What should I be doing with the assignment?

Don't worry about it, the first assignment will be released next week.