API means Application Programming Interface. Java API includes all the stadard packages, classes with various methods defined in it. When program is written in java, it uses java API do perform differnt tasks.
hi, API--->Application Programming Interface API is comman for all (device drivers,windows,java...) In JAVA, Sun launched nearly hundrads of API for Specific needs. This API contains classes,interfaces,and Methods & Field Summery. Eg: jdk1.3 API jsdk2.0 API(servlet API) J2ee API JDBC 3.0 API ................. ................. u can download these from www.java.sun.com web site.
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