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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R.Balu