Question

name three packages of java class library

Answer 1

Following are the 3 packages of Java class library:

(1) java.lang

(2) java.io

(3) java.util.


Hope this helps!

Answer 2

java.io Contains classes for supporting input / output operations.
java.util Contains utility classes which implement data structures like Linked List, Hash Table, Dictionary, etc and support for Date / Time operations.
java.applet Contains classes for creating Applets.