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Q: What is the worst case complexity of accessing an element in ArrayList?

What is the worst case complexity of accessing an element in ArrayList? (a) O(n) (b) O(1) (c ... java programming questions and answers pdf, java interview questions for beginners...

asked Oct 25, 2021 in Education by JackTerrance

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Q: What is the default clone of HashSet?

What is the default clone of HashSet? (a) Deep clone (b) Shallow clone (c) Plain clone (d) ... java programming questions and answers pdf, java interview questions for beginners...

asked Oct 25, 2021 in Education by JackTerrance

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Q: Do we have get(Object o) method in HashSet.

Do we have get(Object o) method in HashSet. (a) True (b) False The question was posed to me ... java programming questions and answers pdf, java interview questions for beginners...

asked Oct 25, 2021 in Education by JackTerrance

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Q: What does Collections.emptySet() return?

What does Collections.emptySet() return? (a) Immutable Set (b) Mutable Set (c) The type of Set ... programming questions and answers pdf, java interview questions for beginners...

asked Oct 25, 2021 in Education by JackTerrance

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Q: What are the initial capacity and load factor of HashSet?

What are the initial capacity and load factor of HashSet? (a) 10, 1.0 (b) 32, 0.75 (c) 16, ... , java programming questions and answers pdf, java interview questions for beginners...

asked Oct 25, 2021 in Education by JackTerrance

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Q: Set has contains(Object o) method.

Set has contains(Object o) method. (a) True (b) False The question was posed to me by my school ... programming questions and answers pdf, java interview questions for beginners...

asked Oct 25, 2021 in Education by JackTerrance

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Q: What is the difference between TreeSet and SortedSet?

What is the difference between TreeSet and SortedSet? (a) TreeSet is more efficient than SortedSet (b) ... questions and answers pdf, java interview questions for beginners...

asked Oct 25, 2021 in Education by JackTerrance

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Q: What happens if two threads simultaneously modify TreeSet?

What happens if two threads simultaneously modify TreeSet? (a) ConcurrentModificationException is thrown (b) Both ... and answers pdf, java interview questions for beginners...

asked Oct 25, 2021 in Education by JackTerrance

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Q: Which of these standard collection classes implements a linked list data structure?

Which of these standard collection classes implements a linked list data structure? (a) AbstractList (b) ... questions and answers pdf, java interview questions for beginners...

asked Oct 25, 2021 in Education by JackTerrance

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Q: Which of these classes implements Set interface?

Which of these classes implements Set interface? (a) ArrayList (b) HashSet (c) LinkedList (d) DynamicList ... questions and answers pdf, java interview questions for beginners...

asked Oct 25, 2021 in Education by JackTerrance

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Q: Which of these method is used to add an element to the start of a LinkedList object?

Which of these method is used to add an element to the start of a LinkedList object? (a) add() ... programming questions and answers pdf, java interview questions for beginners...

asked Oct 25, 2021 in Education by JackTerrance

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Q: Which of these method of HashSet class is used to add elements to its object?

Which of these method of HashSet class is used to add elements to its object? (a) add() (b) ... java programming questions and answers pdf, java interview questions for beginners...

asked Oct 25, 2021 in Education by JackTerrance

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Q: Which of these methods can be used to delete the last element in a LinkedList object?

Which of these methods can be used to delete the last element in a LinkedList object? (a) remove() ... programming questions and answers pdf, java interview questions for beginners...

asked Oct 25, 2021 in Education by JackTerrance

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Q: Which of this method is used to change an element in a LinkedList Object?

Which of this method is used to change an element in a LinkedList Object? (a) change() (b) set( ... programming questions and answers pdf, java interview questions for beginners...

asked Oct 25, 2021 in Education by JackTerrance

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Q: Which of these object stores association between keys and values?

Which of these object stores association between keys and values? (a) Hash table (b) Map (c) Array ... programming questions and answers pdf, java interview questions for beginners...

asked Oct 25, 2021 in Education by JackTerrance

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Q: Which of these classes provide implementation of map interface?

Which of these classes provide implementation of map interface? (a) ArrayList (b) HashMap (c) LinkedList (d ... questions and answers pdf, java interview questions for beginners...

asked Oct 25, 2021 in Education by JackTerrance

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Q: Which of these method is used to remove all keys/values pair from the invoking map?

Which of these method is used to remove all keys/values pair from the invoking map? (a) delete() ... programming questions and answers pdf, java interview questions for beginners...

asked Oct 25, 2021 in Education by JackTerrance

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Q: Which of these method Map class is used to obtain an element in the map having specified key?

Which of these method Map class is used to obtain an element in the map having specified key? (a) ... programming questions and answers pdf, java interview questions for beginners...

asked Oct 25, 2021 in Education by JackTerrance

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Q: Which of these methods can be used to obtain set of all keys in a map?

Which of these methods can be used to obtain set of all keys in a map? (a) getAll() (b) ... java programming questions and answers pdf, java interview questions for beginners...

asked Oct 25, 2021 in Education by JackTerrance

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Q: Which of these class object can be used to form a dynamic array?

Which of these class object can be used to form a dynamic array? (a) ArrayList (b) Map (c) ... java programming questions and answers pdf, java interview questions for beginners...

asked Oct 25, 2021 in Education by JackTerrance

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Q: Which of these are legacy classes?

Which of these are legacy classes? (a) Stack (b) Hashtable (c) Vector (d) All of the mentioned ... programming questions and answers pdf, java interview questions for beginners...

asked Oct 25, 2021 in Education by JackTerrance

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Q: Which of these is the interface of legacy?

Which of these is the interface of legacy? (a) Map (b) Enumeration (c) HashMap (d) Hashtable I ... programming questions and answers pdf, java interview questions for beginners...

asked Oct 25, 2021 in Education by JackTerrance

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Q: What is the name of a data member of class Vector which is used to store a number of elements in the vector?

What is the name of a data member of class Vector which is used to store a number of elements in ... programming questions and answers pdf, java interview questions for beginners...

asked Oct 25, 2021 in Education by JackTerrance

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Q: Which of these class object uses the key to store value?

Which of these class object uses the key to store value? (a) Dictionary (b) Map (c) Hashtable (d ... programming questions and answers pdf, java interview questions for beginners...

asked Oct 25, 2021 in Education by JackTerrance

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Q: Which of these method is used to insert value and its key?

Which of these method is used to insert value and its key? (a) put() (b) set() (c) ... java programming questions and answers pdf, java interview questions for beginners...

asked Oct 25, 2021 in Education by JackTerrance

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Q: Which of these is the interface of legacy is implemented by Hashtable and Dictionary classes?

Which of these is the interface of legacy is implemented by Hashtable and Dictionary classes? (a) Map (b ... questions and answers pdf, java interview questions for beginners...

asked Oct 25, 2021 in Education by JackTerrance

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Q: Which of these is a class which uses String as a key to store the value in object?

Which of these is a class which uses String as a key to store the value in object? (a) Array ... java programming questions and answers pdf, java interview questions for beginners...

asked Oct 25, 2021 in Education by JackTerrance

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Q: Which of these methods is used to retrieve the elements in properties object at specific location?

Which of these methods is used to retrieve the elements in properties object at specific location? (a) get( ... questions and answers pdf, java interview questions for beginners...

asked Oct 25, 2021 in Education by JackTerrance

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Q: Which of these class object has an architecture similar to that of array?

Which of these class object has an architecture similar to that of array? (a) Bitset (b) Map (c) ... programming questions and answers pdf, java interview questions for beginners...

asked Oct 25, 2021 in Education by JackTerrance

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Q: Which of these method is used to make a bit zero specified by the index?

Which of these method is used to make a bit zero specified by the index? (a) put() (b) set() ... java programming questions and answers pdf, java interview questions for beginners...

asked Oct 25, 2021 in Education by JackTerrance