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Pierre
Pierre
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27 questions
1
2
Easy
20 votes
2206 runs
6 comments
Write a Java program that prints 'welovedev'.
Full stack developer
strings
variables
at Sep 19, 2022
Easy
9 votes
2142 runs
0 comment
How should a package be named in Java?
Full stack developer
packages
java
at Sep 19, 2022
Easy
5 votes
2104 runs
0 comment
Are arrays primitives types in Java?
Full stack developer
arrays
primitives
at Sep 19, 2022
Easy
5 votes
2065 runs
0 comment
Add elements to an ArrayList in Java
Full stack developer
arrays
lists
java
at Jan 4, 2022
Medium
3 votes
2053 runs
1 comment
How to print an array in Java
Full stack developer
arrays
java
at Feb 6, 2024
Easy
3 votes
2014 runs
2 comments
Write a valid code comment in Java
Full stack developer
comments
java
at Jan 4, 2022
Easy
3 votes
2001 runs
0 comment
What does `--` do in Java?
Full stack developer
operators
at Jan 4, 2022
Medium
3 votes
248 runs
0 comment
Count the number of words in a string in Java
Full stack developer
hashmap
string
at Jan 4, 2022
Hard
2 votes
2135 runs
4 comments
List the annotations that can be used in a JUnit test class.
Full stack developer
junit
annotations
at Jan 4, 2022
Easy
2 votes
2039 runs
2 comments
What is “AssertEquals” used for in a Java Unit test?
Full stack developer
java
unit test
at Jan 4, 2022
Easy
2 votes
1976 runs
1 comment
How to call an interface in a java class?
Full stack developer
interfaces
java
at Jan 4, 2022
Easy
2 votes
759 runs
0 comment
Reverse a string in Java
Full stack developer
strings
java
at Jan 4, 2022
Hard
1 vote
564 runs
1 comment
Print the value of the enum Color.BLUE
Full stack developer
enum
java
at Feb 21, 2022
Easy
1 vote
264 runs
0 comment
Given a Java code, what will be displayed?
Full stack developer
arrays
lists
java
at Jan 4, 2022
Easy
1 vote
208 runs
0 comment
What is the type of B in the following code: public class A implements B
Full stack developer
interfaces
inheritance
at Jan 4, 2022
Easy
1 vote
200 runs
0 comment
What is the file extension after the Java program has been compiled?
Full stack developer
file
extension
at Jan 4, 2022
Easy
1 vote
197 runs
0 comment
Write a Java method signature to be able to compile my Java program
Full stack developer
java
main method
at Jan 4, 2022
Easy
0 vote
1748 runs
1 comment
Which of the following operators is used to allocate memory for an object?
Full stack developer
operators
memory
at Jan 4, 2022
Easy
0 vote
1276 runs
0 comment
Is a HashMap ordered?
Full stack developer
hashmap
collections
at Jan 4, 2022
Pierre
Pierre
Pierre
Pierre
Pierre
Pierre
Pierre
Pierre
Pierre
Pierre
Pierre
Pierre
Pierre
Pierre
Pierre
Pierre
Pierre
Pierre
Pierre
Easy
7 votes
2087 runs
1 comment
How to concatenate two strings of characters in Java?
Full stack developer
strings
concatenation
at Jan 4, 2022
Pierre
