Chapter 3

Variables are used to hold something; a number, a value, or a frase.
Variables are created by a type and a name.
Floats need and "f" or they will be read as a double.
Java wont let you put a large variable into a smaller one.

Names cannot start with a number.
They can start with letters or $ or a _.
Names cannot be any of Java's reserved words (below).

Java Chapter 2

I learned that Java is a pile of classes.
The object are where you do things.
Use superclasses to do less work in the subclasses.
Subclasses can override superrclasses.
Objects have instance variables and methods.
Classes are not objects, just the blueprints for them.

Java Chapter 1

         Other than the way you start coding, Java is very similar to python. You can use loops(while), boolean (True/False), statements ( like int x=3), and conditionals (if ( <, >, ==) /else).
         Boolean tests belong in parenthesis.
         Use "println" to print on a new line.