Abstract Data Types (ADT) in Java are user-defined data types that encapsulate a data structure and a set of operations that can be performed on that data structure. They are called "abstract" because they provide an abstraction layer that hides the implementation details of the data structure.

Here are some examples of ADT in Java:

1. List ADT: A List ADT is a linear data structure where elements can be inserted or removed from any position. The List interface in Java provides methods for manipulating elements in the list.

2. Stack ADT: A Stack ADT is a linear data structure that follows the LIFO (Last In First Out) principle. The Stack class in Java provides methods for pushing (inserting) and popping (removing) elements.

3. Queue ADT: A Queue ADT is a linear data structure that follows the FIFO (First In First Out) principle. The Queue interface in Java provides methods for inserting (offer) and removing (poll) elements.

4. Set ADT: A Set ADT is a collection that cannot contain duplicate elements. The Set interface in Java provides methods for adding, removing, and checking if an element is in the set.

5. Map ADT: A Map ADT is a collection that maps keys to values. Each key is unique and can map to at most one value. The Map interface in Java provides methods for adding, removing, and checking if a key is in the map.

Remember, these are abstract data types, so the actual implementation (how the data is stored in memory, how operations are performed, etc.) can vary. For example, a List can be implemented as an ArrayList or a LinkedList, and a Map can be implemented as a HashMap or a TreeMap.

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Abstract Data Types (ADT) in Java are user-defined data types that encapsulate a data structure and a set of operations that can be performed on that data structure. They are called "abstract" because they provide an abstraction layer that hides the implementation details of the data structure.

Here are some examples of ADT in Java:

1. List ADT: A List ADT is a linear data structure where elements can be inserted or removed from any position. The List interface in Java provides methods for manipulating elements in the list.

2. Stack ADT: A Stack ADT is a linear data structure that follows the LIFO (Last In First Out) principle. The Stack class in Java provides methods for pushing (inserting) and popping (removing) elements.

3. Queue ADT: A Queue ADT is a linear data structure that follows the FIFO (First In First Out) principle. The Queue interface in Java provides methods for inserting (offer) and removing (poll) elements.

4. Set ADT: A Set ADT is a collection that cannot contain duplicate elements. The Set interface in Java provides methods for adding, removing, and checking if an element is in the set.

5. Map ADT: A Map ADT is a collection that maps keys to values. Each key is unique and can map to at most one value. The Map interface in Java provides methods for adding, removing, and checking if a key is in the map.

Remember, these are abstract data types, so the actual implementation (how the data is stored in memory, how operations are performed, etc.) can vary. For example, a List can be implemented as an ArrayList or a LinkedList, and a Map can be implemented as a HashMap or a TreeMap.

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Abstract Data Types (ADT) in Java are user-defined data types that encapsulate a data structure and a set of operations that can be performed on that data structure. They are called "abstract" because they provide an abstraction layer that hides the implementation details of the data structure.

Here are some examples of ADT in Java:

1. List ADT: A List ADT is a linear data structure where elements can be inserted or removed from any position. The List interface in Java provides methods for manipulating elements in the list.

2. Stack ADT: A Stack ADT is a linear data structure that follows the LIFO (Last In First Out) principle. The Stack class in Java provides methods for pushing (inserting) and popping (removing) elements.

3. Queue ADT: A Queue ADT is a linear data structure that follows the FIFO (First In First Out) principle. The Queue interface in Java provides methods for inserting (offer) and removing (poll) elements.

4. Set ADT: A Set ADT is a collection that cannot contain duplicate elements. The Set interface in Java provides methods for adding, removing, and checking if an element is in the set.

5. Map ADT: A Map ADT is a collection that maps keys to values. Each key is unique and can map to at most one value. The Map interface in Java provides methods for adding, removing, and checking if a key is in the map.

Remember, these are abstract data types, so the actual implementation (how the data is stored in memory, how operations are performed, etc.) can vary. For example, a List can be implemented as an ArrayList or a LinkedList, and a Map can be implemented as a HashMap or a TreeMap.

Briefly describe abstract data types defined in Java programming Language.

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