Chapter 7: Arrays and Array Lists

Arrays

• Declaration, e.g. int [] census;
• Allocation, e.g. census = new int [100];
• Access, e.g. census[99]
• Assignment, e.g. census[99] = 834,000;
• Length Determination, e.g. census.length;

Array Lists

• Declaration, e.g. ArrayList<GringottsAccount> accounts;
• Allocation - automatic
• Access, e.g. accounts.get(2);
• Assignment, e.g. accounts.add(new GringottsAccount("Hermione"));
• Assignment, e.g. accounts.set(2, new GringottsAccount("Harry"));
• Removal, e.g. accounts.remove(2);
• Length Determination, e.g. accounts.size();

Wrappers and Auto-Boxing

Lecture Code

• CardDeck.java
• Card.java