Java: Expressions and Operators
Operators such as * for multiplication are the
same as in C++. Also, comparison operators (e.g. ==),
Logical Operators (e.g. && or ||) and Bitwise Operators
(e.g. << for left shift) are the same as in C++.
The Math Class This is a class that implements
many of the mathematical operations such as square root,
absolute value. Remember that Java does not have functions
so they need to become methods of a class. You can call
the cosine function as follows:
double value = Math.cos(45.0); /*this will yeild cos(45 degrees) */