What is java library?

A package of useful functions in java is preloaded in a library called Java Library.

Number of libraries in java are as follows:-

·        java.lang:- for the basic runtime support for the Java language like exception, threads.

·        Java.applet:- for applet supports.

·        Java.awt:- for windowing and GUI support

·        Java.io:- for supporting input and output data.

·        Java.util:- for utility data structures.

·        Java.math:- for support for the decimal and numeric types in the SQL data type.