How to interact with Java. Data types, variables, constants, & statements. The Math & String library

Discussion on how to interact with Java, particularly in Dr. Java. Definition of variables and constants using primitive types and Strings.

Recognition of variable's definition/declaration. How to use arithmetic operations in variables.

The usage of libraries such as Math and String.
- Explanation of multiple Math methods such as .sqrt(), and .pow()
- Explanation of multiple String's methods such as .length(), .charAt(),
.toUpperCase(), .toLowerCase(), and .substring()

Discussion of StringIndexOutOfBounds, whenever it is accessed an index out of the boundaries of the String.

[maomiao]

Can you run the same commands using other IDEs? Or is this just Dr. Java specific (such as writing 2+2 results in 4 in the terminal)