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John Selawsky
Java Collections
7 March 2022 8:49
HashMap getOrDefault method in Java
What is the getOrDefault method for HashMaps in Java? “The getOrDefault method returns the value mapped to the specified key in a HashMap. If that key is not present then a default value is returned.”...
Artem Divertitto
Java Math
7 March 2022 8:40
Java Math abs() method
What is the absolute value function in Mathematics? In mathematics, the absolute value of a number is equal to the positive value of the number passed.The absolute value function ignores the sign and returns the value without it...
Volodymyr Portianko
Java Collections
4 March 2022 11:57
How to use entrySet() method in Java
What is the entrySet() method in Java? The “HashMap” class provides the java.util.HashMap.entrySet() method in Java. It is used to create and then return a ‘set’...
Lucy Oleschuk
Random
23 February 2022 9:26
Why Do People Love Coding? Explaining The Passion for Profession
Programming exploded in popularity during the last decade. And a lot of that hype appeared from the prospect of landing a high-paying job. But, in reality, there are so many other...
CodeGym
Random
15 February 2022 8:13
IT News Digest #4: Amazon doubles the salary cap for tech employers, Java developers get new tools, cybercriminals target Linux
Last week in news: new tools for Java code compilation & visualization, increasing earnings & salaries in Big Tech, Tesla might become a rival for Google and...
CodeGym
Learning Java
10 February 2022 11:03
Got Stuck? Most Difficult Parts of Learning Java and How to Overcome Them
As you know, we recommend coding beginners to start learning programming languages with Java, and CodeGym has everything to make the process of learning Java digestible...
Alex Vypirailenko
Java Arrays
10 February 2022 7:50
Java System.arraycopy() Method
What is Java System.arraycopy() Method? The java.lang.System.arraycopy() method copies a source array, at a specific beginning position, to a destination at a given index...
Artem Divertitto
Java Numbers
9 February 2022 14:46
Integer.MAX_VALUE in Java with Examples
What is Integer.MAX_VALUE in Java? The Integer.MAX_VALUE in Java is a constant that represents the maximum positive integer value...
Artem Divertitto
Inheritance in Java
8 February 2022 12:45
Java extends Keyword with Examples
What is Java extends Keyword? The extends in Java is a keyword that indicates inheritance between a child and parent class. Extends In Java is a keyword that is written with the child class during class declaration followed by the name of the parent class. When a child class...
CodeGym
Random
8 February 2022 9:48
IT News Digest #3: Java developer became the best job in UK in 2022, IntelliJ IDEA releases plugin for debugging microservices, Microsoft sets a new record
Last week in news: new tools by GitHub, IntelliJ IDEA, JRelease; Java developer is one of the best career options in 2022; and more!
Vasyl Malik
Strings in Java
4 February 2022 8:16
Java: Check if String is Null, Empty or Blank
In Java, it’s very easy to confuse a null, empty or a blank string for beginners. However, let’s go by the definition of each to draw a line of difference. What is a “null” String in Java?..
CodeGym
Random
3 February 2022 9:00
Math, Data Structures, Algorithms. What to Learn Before Diving Into Java
It is not uncommon for people who start learning how to code to wonder if they should begin with basic programming-related subjects before studying a programming language. So do you really need to start...
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