Collection classes are defined in which packages?A) java.io packageB) java.lang packageC) java.util packageD) java.sql package

Answering the Question

To determine which package defines the collection classes in Java, we need to consider the purpose of the mentioned packages:

1. java.io package: This package is primarily used for input and output through data streams, serialization, and the files system. It does not contain collection classes.

2. java.lang package: This package provides fundamental classes that are essential for the Java programming language. It includes classes like String, Math, Thread, etc., but not collection classes.

3. java.util package: This package is specifically designed for utility classes, which include the collection framework. It contains classes like ArrayList, HashMap, HashSet, and other collections that are crucial for data manipulation.

4. java.sql package: This package provides classes and interfaces for accessing and processing data in a database, not for general purpose collection classes.

Final Answer

The correct answer is C) java.util package, as it contains the collection classes in Java.