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Volodymyr Portianko
Java IO & NIO
20 November 2020 7:10
Is there nextChar() in Scanner Class in Java?
Taking character input in Java isn’t as simple as taking input as a string or integer. The Scanner class in Java works with nextInt(), nextLong(), nextDouble(), etc. However, it does not support nextChar in Java, which makes taking character input slightly more complicated. If you’re looking...
Artem Divertitto
Java Interfaces
19 November 2020 14:46
Java Predicate with Examples
Generally predicate means a statement that determines whether a value could be true or false. In programming predicates mean functions with one argument that return a boolean value. Functional Interface Predicate was realised in Java 8. “Functional” means...
Vlad
Success Stories
19 November 2020 9:42
From university to mid-level dev
Hello, everyone! I've been meaning to write my story for a year now. I never found the time. But the thought would never leave me, and then one fine evening the opportunity came. I'll give you a little background. I graduated from the university with a degree...
Volodymyr Portianko
Java Arrays
18 November 2020 12:55
How To Add a new Element To An Array In Java
Oh, Java arrays. They are the object of intense love and hatred of hundreds of beginner software developers. Adding elements to an array that was already initialised is impossible, they said… Actually, it is possible, but not in a classical meaning...
Milan Vucic
Java Collections
18 November 2020 11:44
Sublist() Method in Java: ArrayList and List
The Collections Framework is a very popular component in Java API. List interface and ArrayList class are probably the most important tools in the Collections Framework. subList is a method in the List interface that lets you create...
John Selawsky
Java Collections
18 November 2020 11:06
HashSet contains() Method in Java
What is a HashSet? HashSet is a built-in datatype in Java, and in layman terms you can say “HashSet is an unordered collection of unique elements.” Have a look at a basic example. HashSet extends (extends means a class is inherited from another class) AbstractSet and...
Artem Divertitto
Java Collections
18 November 2020 10:49
Queue poll() Method in Java with Examples
Just like the name implies, Queue is a common data structure in Java following the First In First Out (FIFO) insertion order. You can easily imagine it as a queue at a grocery store. The sooner you enter, the sooner you leave. It means the element...
CodeGym
Random
18 November 2020 9:16
2020/21: Software Development Trends and Future Predictions
It’s less than two months till the end of 2020. The time to start stock-taking and next year forecast-making. Which is kind of always fun, isn’t it? Summing up what this year has brought us and speculating on what to expect in the next year. That is exactly what we are going to do today...
CodeGym
Random
16 November 2020 10:21
How to Create an Effective Study Plan. 8 Steps for Java Learners
On CodeGym, we are true believers in the online learning model and advocate for it every time we can. Because online education really has lots of obvious advantagess, such as low costs, flexibility, using more effective ways to present information...
Andrej
Random
15 November 2020 22:24
Project ideas
Few project ideas to add into your Git to level up your skills & portfolio! Coming up with project ideas can be sometimes really hard task especially for beginner who still don't exactly know what they are capable of doing, so they pick up too easy projects, which don't give...
Alex Yedamenko
Success Stories
12 November 2020 7:25
Retraining on steroids
Two years and three months have passed since I signed up for this course and wrote HelloWorld. I should have written this article and paid tribute to this wonderful resource long ago, but somehow the fast pace of life stopped me. But now "thanks" to the covid...
CodeGym
Random
11 November 2020 6:53
Industry is Overcrowded with Bad Java Coders. Why is the Demand for Java Devs in 2020 Still Increasing?
Today the total number of Java developers globally is over 7 mln (based on different estimates, there are 6.8-8 mln Java coders in the world), which is quite a large number....
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