Which feature introduced in Java 8 allows you to write more concise and expressive code for handling collections?
Anonymous Quiz
23%
Enhanced for loop
20%
Generics
44%
Lambda expressions
12%
Method references
👍7👏1
In Java 11, which module was introduced to provide a standard API for working with HTTP clients and servers?
Anonymous Quiz
24%
21%
32%
java.http
23%
java.net.http
👍8
In Java, which feature is used to define methods that can accept variable-length argument lists?
Anonymous Quiz
11%
Variadic functions
40%
Variable functions
21%
Varargs
28%
Variable methods
👍5
Which feature, introduced in Java 12, allows the JVM to allocate and deallocate memory more efficiently for small objects?
Anonymous Quiz
45%
Switch Expressions
17%
Shenandoah GC
23%
Value Types
15%
Compact Strings
👏4❤1
Can an interface have static methods in Java?
Anonymous Quiz
54%
Yes, with the static keyword.
22%
No, static methods are not allowed in interfaces.
17%
Yes, with the abstract keyword.
7%
No, interfaces can only have instance methods.
👏4
👍4
Which of the following is the return type of the lines() method in the java.nio.file.Files class?
Anonymous Quiz
33%
Stream<String>
20%
List<String>
11%
Set<String>
16%
Map<String, String>
21%
None of the above
❤6👍4👏1
What is the purpose of the 'record' keyword introduced in Java 16?
Anonymous Quiz
43%
It creates a new record in a database.
25%
It defines a new type of class for storing records.
17%
It's a replacement for the 'enum' keyword.
15%
It's used to create classes for immutable data with automatic methods.
👍5😈2🔥1😁1
What is the purpose of the Optional class?
Anonymous Quiz
48%
To represent a value that may or may not be present
21%
To represent a set of values
10%
To represent a map of values
13%
To represent a function
7%
None of the above
❤3👏1
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❤1🔥1👏1
Which data structure uses the "Last-In-First-Out" (LIFO) principle?
Anonymous Quiz
64%
Stack
27%
Queue
5%
DeQueue
4%
DoubleLinkedList
👍6
In which element we put javascript?
Anonymous Poll
37%
<javascript>
7%
<scripting>
52%
<script>
4%
None of these
👍1
Which of the following statements is true about functional interfaces?
Anonymous Quiz
42%
They can have multiple abstract methods.
12%
They cannot have any methods.
35%
They can have only one abstract method.
10%
They can have only static methods.
👍4👏3💘1
#java_quizs (Question - 151) . What is the name of the method used to start a thread execution?
Anonymous Quiz
25%
init();
47%
start();
22%
run();
5%
resume();
⚡6👍4
Where does the system stores parameters and local variables whenever a method is invoked?
Anonymous Quiz
42%
Heap
45%
Stack
10%
Meta space
2%
perm gen space
⚡8💘4👍3
Anonymous Quiz
71%
Array
6%
Avl tree
17%
Binary tree
6%
Graphs
👍7🥰1👏1