Iterator: Iterators are brought in use only in Collection framework in java so as to retrieve elements one by one. There are three types of iterators, they are: Enumeration Iterator Listiterator Enumeration: It is an interface that is used to get elements of legacy collections( Vector , Hashtable). It is also used to specify the input streams to a “SequenceInputStream”. Iterator: It is also known as universal iterator as we can use it to any Collection object. With the use of this iterator, we can perform both read and remove operations. Listiterator: It is only applicable for list collection implemented classes like ArrayList, LinkedList and soon. it also provides bi-directional iteration.

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Answer 1

Question

Chapter 24.2, Problem 24.2.1CP

Program Plan Intro

Iterator:

Iterators are brought in use only in Collection framework in java so as to retrieve elements one by one. There are three types of iterators, they are:

Enumeration

Iterator

Listiterator

Enumeration:

It is an interface that is used to get elements of legacy collections(Vector, Hashtable). It is also used to specify the input streams to a “SequenceInputStream”.

Iterator:

It is also known as universal iterator as we can use it to any Collection object. With the use of this iterator, we can perform both read and remove operations.

Listiterator:

It is only applicable for list collection implemented classes like ArrayList, LinkedList and soon. it also provides bi-directional iteration.

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Answer 2

Question

Chapter 24.2, Problem 24.2.1CP

Program Plan Intro

Iterator:

Iterators are brought in use only in Collection framework in java so as to retrieve elements one by one. There are three types of iterators, they are:

Enumeration

Iterator

Listiterator

Enumeration:

It is an interface that is used to get elements of legacy collections(Vector, Hashtable). It is also used to specify the input streams to a “SequenceInputStream”.

Iterator:

It is also known as universal iterator as we can use it to any Collection object. With the use of this iterator, we can perform both read and remove operations.

Listiterator:

It is only applicable for list collection implemented classes like ArrayList, LinkedList and soon. it also provides bi-directional iteration.

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Answer 3

Question

Chapter 24.2, Problem 24.2.1CP

Program Plan Intro

Iterator:

Iterators are brought in use only in Collection framework in java so as to retrieve elements one by one. There are three types of iterators, they are:

Enumeration

Iterator

Listiterator

Enumeration:

It is an interface that is used to get elements of legacy collections(Vector, Hashtable). It is also used to specify the input streams to a “SequenceInputStream”.

Iterator:

It is also known as universal iterator as we can use it to any Collection object. With the use of this iterator, we can perform both read and remove operations.

Listiterator:

It is only applicable for list collection implemented classes like ArrayList, LinkedList and soon. it also provides bi-directional iteration.

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Answer 4

Question

Chapter 24.2, Problem 24.2.1CP

Program Plan Intro

Iterator:

Iterators are brought in use only in Collection framework in java so as to retrieve elements one by one. There are three types of iterators, they are:

Enumeration

Iterator

Listiterator

Enumeration:

It is an interface that is used to get elements of legacy collections(Vector, Hashtable). It is also used to specify the input streams to a “SequenceInputStream”.

Iterator:

It is also known as universal iterator as we can use it to any Collection object. With the use of this iterator, we can perform both read and remove operations.

Listiterator:

It is only applicable for list collection implemented classes like ArrayList, LinkedList and soon. it also provides bi-directional iteration.

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Answer 5

Chapter 24.2, Problem 24.2.1CP

Program Plan Intro

Iterator:

Iterators are brought in use only in Collection framework in java so as to retrieve elements one by one. There are three types of iterators, they are:

Enumeration

Iterator

Listiterator

Enumeration:

It is an interface that is used to get elements of legacy collections(Vector, Hashtable). It is also used to specify the input streams to a “SequenceInputStream”.

Iterator:

It is also known as universal iterator as we can use it to any Collection object. With the use of this iterator, we can perform both read and remove operations.

Listiterator:

It is only applicable for list collection implemented classes like ArrayList, LinkedList and soon. it also provides bi-directional iteration.

Answer 6

Chapter 24.2, Problem 24.2.1CP

Program Plan Intro

Iterator:

Iterators are brought in use only in Collection framework in java so as to retrieve elements one by one. There are three types of iterators, they are:

Enumeration

Iterator

Listiterator

Enumeration:

It is an interface that is used to get elements of legacy collections(Vector, Hashtable). It is also used to specify the input streams to a “SequenceInputStream”.

Iterator:

It is also known as universal iterator as we can use it to any Collection object. With the use of this iterator, we can perform both read and remove operations.

Listiterator:

It is only applicable for list collection implemented classes like ArrayList, LinkedList and soon. it also provides bi-directional iteration.

Answer 7

Chapter 24.2, Problem 24.2.1CP

Program Plan Intro

Iterator:

Iterators are brought in use only in Collection framework in java so as to retrieve elements one by one. There are three types of iterators, they are:

Enumeration

Iterator

Listiterator

Enumeration:

It is an interface that is used to get elements of legacy collections(Vector, Hashtable). It is also used to specify the input streams to a “SequenceInputStream”.

Iterator:

It is also known as universal iterator as we can use it to any Collection object. With the use of this iterator, we can perform both read and remove operations.

Listiterator:

It is only applicable for list collection implemented classes like ArrayList, LinkedList and soon. it also provides bi-directional iteration.

Answer 8

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Answer 9

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Answer 10

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Answer 11

Ch. 24.2 - Prob. 24.2.1CP Ch. 24.2 - Prob. 24.2.2CP Ch. 24.2 - Prob. 24.2.3CP Ch. 24.2 - Prob. 24.2.4CP Ch. 24.3 - What are the limitations of the array data type?Ch. 24.3 - Prob. 24.3.2CP Ch. 24.3 - Prob. 24.3.3CP Ch. 24.3 - What is wrong if lines 11 and 12 in Listing 24.2,...Ch. 24.3 - If you change the code in line 33 in Listing 24.2,...Ch. 24.3 - Prob. 24.3.6CP

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Chapter 24 Solutions