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  • Runnable and Callable in Java

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    In the early days of Java programming, whenever you want to create a thread, usually you would need the help of whether extending the Thread class or implementing the Runnable […]

  • What’s new in Java 15?

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    Java 15 will officially be released in September 2020, however its new and updated features are now available for us as early access for who wants to find out. In […]

  • A Guide To Functional Interfaces in Java

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    A functional interface is an interface that contains exactly one abstract method. However, it still can have an arbitrary number of default or static methods. Talk about a functional interface […]

  • Iterable and Iterator in Java

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    A lot of people feel confused about the Iterator and Iterable interfaces in Java, because they have very similar names and sometimes they work together which makes people hardly tell […]

  • Serialization and Deserialization in Java through concrete examples

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    In Java, the lifetime of all objects is limited at runtime, which means when you close a program and reopen it again, every object is reset to the initial state. […]

  • A Great Introduction to Threads in Java – How to create your own thread

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    In the operating system terminology, a thread is the smallest unit of execution schedulable by an operating system’s scheduler. A process can be made up of one or many threads, […]

  • Inside JVM, JRE, JDK And Their Relationship

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    There are several basic terms that often confuse beginners are JVM, JRE, and JDK. From the abbreviation, they look quite the same and it is quite hard to tell them […]

  • Understand Tree Traversal: Pre-order, In-order, and Post-order Traversal

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    Many of you probably have familiar with arrays or linked-lists, we know that in those data structures, elements can be traversed linearly. But what about the binary tree? As we […]

  • Binary Search Tree (BST) Concrete Implementation In Java

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    Binary Search Tree is a fundamental data structure that stores items in the memory. In this article, we will learn what is a binary search tree (BST for short) and […]

  • Understand 7 non-access modifiers in Java

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    In the first part, we have learned about access modifiers in Java, including public, protected, default and private. Indeed we can see that there are 4 access modifiers in Java. […]

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