Java built in classes

A built-in class is a class whose instances have restricted capabilities or special representations . Attempting to use defclass to define subclasses of a built-in class signals an error of type error. Calling make-instance to create an instance of a built-in class signals an error of type error.

Built in functions in java are methods that are present in different API of JDK . For example cos(double a), exp(double a) etc are built in function of java present in java. lang. Math class.

Built in functions in java are methods that are present in different API of JDK . For example cos(double a), exp(double a) etc are built in function of java present in java. lang. Math class.