What is the Java keyword for allocating memory to objects?
Anonymous Quiz
14%
alloc
18%
malloc
13%
allocate
51%
new
4%
create
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Data Structures play a crucial role in programming. Which data structure would you use to implement a LIFO (Last-In-First-Out) behavior
Anonymous Quiz
28%
Queue
8%
Heap
9%
HashTable
54%
Stack
👍11
Which Java design pattern is used to ensure that a class has only one instance and provides a global point of access to that instance?
Anonymous Quiz
19%
factory
30%
builder
11%
flyweight
40%
singleton
🔥5
🔥6
What's the time complexity of finding a key in a hashmap?
Anonymous Quiz
25%
O(1)
35%
O(n)
28%
O(nlogn)
12%
O(logn)
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In a binary tree, what is the maximum number of children a node can have?
Anonymous Quiz
8%
0
15%
1
46%
2
31%
n
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Which feature was introduced in Java 14?
Anonymous Quiz
20%
Records
23%
Switch expressions
28%
local variable type inference
29%
Pattern Matching for instanceof
👍5
Which method is used to fill an array with a specific value in the Arrays class?
Anonymous Quiz
33%
fillArray
27%
setAll
14%
fill
26%
initialize
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Interview questions.pdf
2.8 MB
Interview questions.pdf
Static variable is stored in which of these memory ?
Anonymous Quiz
37%
Heap
41%
Stack
13%
Registers
10%
none of the above
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Which collection class is synchronized in Java?
Anonymous Quiz
44%
ArrayList
23%
LinkedList
19%
Vector
14%
HashSet
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