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Pierre
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27 questions
Easy
35 votes3113 runs
12 comments

Write a Java program that prints 'welovedev'.

Full stack developer
strings
variables
Pierreat Sep 19, 2022
Easy
13 votes3013 runs
2 comments

How should a package be named in Java?

Full stack developer
packages
java
Pierreat Sep 19, 2022
Easy
11 votes2882 runs
2 comments

How to concatenate two strings of characters in Java?

Full stack developer
strings
concatenation
Pierreat Jan 4, 2022
Easy
10 votes2921 runs0 comment

Add elements to an ArrayList in Java

Full stack developer
arrays
lists
java
Pierreat Jan 4, 2022
Easy
8 votes2937 runs0 comment

Are arrays primitives types in Java?

Full stack developer
arrays
primitives
Pierreat Sep 19, 2022
Easy
6 votes2793 runs
3 comments

Write a valid code comment in Java

Full stack developer
comments
java
Pierreat Jan 4, 2022
Easy
6 votes2746 runs0 comment

What does `--` do in Java?

Full stack developer
operators
Pierreat Jan 4, 2022
Easy
6 votes2603 runs
3 comments

How to print an array in Java

Full stack developer
arrays
java
Pierreat Feb 6, 2024
Easy
5 votes2840 runs
3 comments

What is “AssertEquals” used for in a Java Unit test?

Full stack developer
java
unit test
Pierreat Jan 4, 2022
Medium
4 votes3027 runs5 comments

List the annotations that can be used in a JUnit test class.

Full stack developer
junit
annotations
Pierreat Jan 4, 2022
Easy
4 votes2598 runs
2 comments

How to call an interface in a java class?

Full stack developer
interfaces
java
Pierreat Jan 4, 2022
Medium
4 votes397 runs0 comment

Count the number of words in a string in Java

Full stack developer
hashmap
string
Pierreat Jan 4, 2022
Easy
3 votes1021 runs0 comment

Reverse a string in Java

Full stack developer
strings
java
Pierreat Jan 4, 2022
Easy
1 vote2098 runs
2 comments

Which of the following operators is used to allocate memory for an object?

Full stack developer
operators
memory
Pierreat Jan 4, 2022
Easy
1 vote1614 runs0 comment

Is a HashMap ordered?

Full stack developer
hashmap
collections
Pierreat Jan 4, 2022
Easy
1 vote1305 runs2 comments

What is Java?

Full stack developer
object-oriented programming
java
Pierreat Feb 24, 2022
Medium
1 vote744 runs1 comment

Print the value of the enum Color.BLUE

Full stack developer
enum
java
Pierreat Feb 21, 2022
Easy
1 vote388 runs0 comment

Given a Java code, what will be displayed?

Full stack developer
arrays
lists
java
Pierreat Jan 4, 2022
Easy
1 vote325 runs
1 comment

What is the type of B in the following code: public class A implements B

Full stack developer
interfaces
inheritance
Pierreat Jan 4, 2022
Easy
1 vote309 runs0 comment

What is the file extension after the Java program has been compiled?

Full stack developer
file
extension
Pierreat Jan 4, 2022