Java
TreeMap in Java | Usage with Coding Examples
In Java, TreeMap is a class that implements the Map interface and provides a red-black tree-based implementation of a map. It stores data into key-value pairs in a sorted...
LinkedHashMap in Java | Code, Examples, Advantages (Complete Guide)
What is LinkedHashMap in Java? LinkedHashMap is a class in the Java Collections Framework that extends the HashMap class. It is a data structure that stores key-value pairs...
Default Methods in Java 8 Interface | Code Examples Explained
What is Default Method in Java Interface? In Java, a default method is a method that has a default implementation and can be overridden by a class implementing the...
Functional Interface in Java 8 | Code Examples Explained
What is Functional Interface in Java? A functional interface in Java is an interface with a single abstract method. This allows it to be used as the target type for a lambda...
Java TreeSet Class | Complete Tutorial | Explained with Coding Examples
The TreeSet class in Java is a member of the Java Collections Framework and is implemented as a red-black tree. It is a Set data structure that stores unique elements in...
LinkedHashSet in Java with Code and Examples
In Java, a LinkedHashSet is a class that implements the Set interface and is based on a linked list data structure. It maintains the elements in the order they were added, and...
Java Array | Declaration, Initialization, Example Code
Array in Java is an important concept and, in this article, we are going to understand the array and its working. Java array is an object that is used to hold multiple...
35 Java Interview Questions for Freshers and Experienced 2023
If you are preparing for a Java interview or looking job opportunity in Java development, here are the 35 Java interview questions you must prepare for. Whether you are a...
Second Largest/Smallest Number in Array in C/C++, Java and Python
In an earlier tutorial, we have seen how to find the smallest or largest number from the integer array. In this tutorial, we are going to find the second smallest number in an...