[CS61B-2015] Notes for class 4-Testing

https://berkeley-cs61b.github.io/public_html/materials/lab/lab2/lab2.html

import org.junit.Test;
import static org.junit.Assert;
assertEquals(expected, actual);

To make testing output more concise
1. Annotate each test with @org.junit.Test
2. Make methods non-static
3. jh61b.junit.textui.runClasses

example:
https://github.com/Berkeley-CS61B/lectureCode/blob/master/lec4/live1/TestSort.java

Using the "final" keyword in Java

Using the "final" keyword in Java has different meaning depending on what it applied to:

• Variable: the value cannot be changed once initialized.
• Method: the method cannot be overridden by a subclass.
• Class: the class cannot be subclassed.

Notes for "Head first Java"

• A boolean and an integer are not compatible types in Java
• int x = 1;
• While(x)...
• Objects are stored in heap (Garbage-collectible heap).
• If you're running low on memory, the Garbage Collector will run, throw out the unreachable objects (no reference points to them).
• There is no "global variable" in Java. Use public static instead. Any code, in any class of your application, can access a public static method/variable.
• If the end-user doesn't have a JVM, then you'll also need to include that with your application's classes.

[CS61B-2015] Notes for class 3

A variable name in Java is a name for a simple container.
The 9 things that can go in simple containers:

• primitive values(byte, short, int, long, float, double, boolean, char
• references to Objects (an arrow), references may be null

Java is "Pass by value" (in some case, the "value" is a reference?)

[CS61B-2015] Notes for class 2-Defining and using classes

Static vs. Non-static
A class may have a mix of static and non-static members.

• A variable or method defined in a class is also called a member of that class.
• Static members are accessed using class name, e.g. ClassName.StaticMember.
• Non-static members cannot be invoked using class name: Dog.makeNoise().
• Static methods must access instance variables via a specific instance, e.g. an object.
• Static members are shared in a class.

Good Git tutorials

Tutorial
https://berkeley-cs61b.github.io/public_html/materials/lab/lab1/lab1.html#c-using-git

Documentation
http://git-scm.com/documentation

Practice
https://try.github.io/levels/1/challenges/1