Chapter 4: Fundamental Data Types

Arithmetic Operators

• Addition: +
• Subtraction: -
• Multiplication: *
• Division: /
• Remainder of Integer Division (Modulo): %
• Note: parentheses can be used to overcome precedence

Built-In Math Class

• Contains many built-in static methods such as Math.sqrt(double)

Roundoff Errors

• Computers represent numbers with an underlying binary representation. While some numbers can be represented exactly (e.g. 0.5), others can not (e.g. 0.35). This in turn can lead to roundoff errors in computations.

Lecture Code

The program below calculates compound interest using the equation found here.

• TestProgram.java