Java-Collections

1.1k+ posts

Last Updated: 04 October 2024

The java.util.HashMap.get() method of HashMap class is used to retrieve or fetch the value mapped by a particular key mentioned in the param ...read more

Java

Java-Collections

Java - util package

Java-Functions

Java-HashMap

How to iterate any Map in Java

Last Updated: 04 October 2024

There are generally five ways of iterating over a Map in Java. In this article, we will discuss all of them and also look at their advantage ...read more

Last Updated: 19 December 2024

In Java, HashMap is part of the Java Collections Framework and is found in the java.util package. It provides the basic implementation of th...read more

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ArrayList to Array Conversion in Java : toArray() Methods

Last Updated: 04 October 2024

Following methods can be used for converting ArrayList to Array:Method 1: Using Object[] toArray() methodSyntax: public Object[] toArray() I...read more

Map Interface in Java

Last Updated: 24 December 2024

In Java, Map Interface is present in thejava.utilpackage represents a mapping between a key and a value. Java Map interface is not a subtype...read more

How to remove an element from ArrayList in Java?

Last Updated: 04 October 2024

ArrayList is a part of collection framework and is present in java.util package. It provides us with dynamic arrays in Java. Though, it may ...read more

Last Updated: 23 November 2024

The List Interface in Java extends the Collection Interface and is a part of java.util package. It is used to store the ordered collections ...read more

Last Updated: 18 November 2024

Java ArrayList is a part of collections framework and it is a class of java.util package. It provides us with dynamic arrays in Java. Though...read more

Queue Interface In Java

Last Updated: 25 November 2024

The Queue Interface is present in java.util package and extends the Collection interface. It stores and processes the data in FIFO(First In ...read more

Java

Java-Collections

java-queue

PriorityQueue in Java

Last Updated: 26 November 2024

The PriorityQueue class in Java is part of the java.util package. It is known that a Queue follows the FIFO(First-In-First-Out) Algorithm, b...read more

Last Updated: 19 December 2024

HashSet in Java implements the Set interface of Collections Framework. It is used to store the unique elements and it doesn't maintain any s...read more

Last Updated: 05 November 2024

Any group of individual objects that are represented as a single unit is known as a Java Collection of Objects. In Java, a separate framewor...read more

Java

Java-Collections

Set in Java

Last Updated: 25 November 2024

The Set Interface is present in java.util package and extends the Collection interface. It is an unordered collection of objects in which du...read more

Last Updated: 26 November 2024

Linked List is a part of the Collection framework present in java.util package. This class is an implementation of the LinkedList data struc...read more

Last Updated: 26 November 2024

Java Collection framework provides a Stack class that models and implements a Stack data structure. The class is based on the basic principl...read more

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