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Java ArrayList add Method with Examples

Last Updated: September 17, 2022 by Chaitanya Singh | Filed Under: java

The add() method of Java ArrayList class is used to add elements to an ArrayList. In this guide, we will see various examples of add… [Read More]

Tags: Collections, Java-ArrayList

How to compare two ArrayList in Java

Last Updated: September 11, 2022 by Chaitanya Singh | Filed Under: java

In this tutorial we will learn how to compare two ArrayList. We would be using contains() method for comparing two elements of different ArrayList. public… [Read More]

Tags: Collections, Java-ArrayList

How to override toString method for ArrayList in Java

Last Updated: September 11, 2022 by Chaitanya Singh | Filed Under: java

When we are dealing with ArrayList of Objects then it is must to Override the toString() method in order to get the output in desired… [Read More]

Tags: Collections, Java-ArrayList

How to serialize ArrayList in java

Last Updated: September 11, 2022 by Chaitanya Singh | Filed Under: java

ArrayList is serializable by default. This means you need not to implement Serializable interface explicitly in order to serialize an ArrayList. In this tutorial we will learn how… [Read More]

Tags: Collections, Java-ArrayList

Difference between ArrayList and HashMap in Java

Last Updated: September 11, 2022 by Chaitanya Singh | Filed Under: java

ArrayList and HashMap are two commonly used collection classes in Java. Even though both are the part of collection framework, the way they store and… [Read More]

Tags: Collections, Java-ArrayList, Java-HashMap

How to join/combine two ArrayLists in java

Last Updated: September 11, 2022 by Chaitanya Singh | Filed Under: java

In this tutorial we will see how to join (or Combine) two ArrayLists in Java. We will be using addAll() method to add both the… [Read More]

Tags: Collections, Java-ArrayList

How to find length of ArrayList in Java

Last Updated: September 11, 2022 by Chaitanya Singh | Filed Under: java

You can find the length (or size) of an ArrayList in Java using size() method. The size() method returns the number of elements present in… [Read More]

Tags: Collections, Java-ArrayList

How to empty an ArrayList in Java

Last Updated: September 11, 2022 by Chaitanya Singh | Filed Under: java

There are two ways to empty an ArrayList – By using ArrayList.clear() method or with the help of ArrayList.removeAll() method. Although both methods do the same… [Read More]

Tags: Collections, Java-ArrayList

How to synchronize ArrayList in java with example

Last Updated: September 11, 2022 by Chaitanya Singh | Filed Under: java

We have already discussed a bit about synchronization when we shared the tutorial on Vector vs ArrayList. As we are aware that ArrayList is non-synchronized… [Read More]

Tags: Collections, Java-ArrayList

How to swap two elements in an ArrayList

Last Updated: September 11, 2022 by Chaitanya Singh | Filed Under: java

This tutorial will help you understand how to swap two elements in an ArrayList. We are using Collections.swap() method for swapping. public static void swap(List… [Read More]

Tags: Collections, Java-ArrayList

How to get sublist of an ArrayList with example

Last Updated: September 11, 2022 by Chaitanya Singh | Filed Under: java

In this tutorial, we will see how to get a sublist from an existing ArrayList. We will be using the subList() method of ArrayList class…. [Read More]

Tags: Collections, Java-ArrayList

ArrayList clone() method in Java

Last Updated: September 11, 2022 by Chaitanya Singh | Filed Under: java

In this tutorial, we will see examples of ArrayList clone() method. This method creates a shallow copy of an ArrayList. Syntax: newList = oldList.clone() Creates… [Read More]

Tags: Collections, Java-ArrayList

Copy Elements of One ArrayList to Another ArrayList in Java

Last Updated: September 11, 2022 by Chaitanya Singh | Filed Under: java

In this tutorial, we will write a java program to copy elements of one ArrayList to another ArrayList in Java. We will be using addAll()… [Read More]

Tags: Collections, Java-ArrayList

Difference between ArrayList and LinkedList in Java

Last Updated: July 1, 2024 by Chaitanya Singh | Filed Under: java

In this guide, you will learn difference between ArrayList and LinkedList in Java. ArrayList and LinkedList both implements List interface and their methods and results… [Read More]

Tags: Collections, Java-ArrayList, Java-LinkedList

Difference between ArrayList and Vector in Java

Last Updated: September 11, 2022 by Chaitanya Singh | Filed Under: java

ArrayList and Vector both use Array as a data structure internally. However there are key differences between these classes. In this guide, you will learn… [Read More]

Tags: Collections, Java-ArrayList, Java-Vector

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Java Tutorial

Java Introduction

  • Java Index
  • Java Introduction
  • History of Java
  • Features of Java
  • C++ vs Java
  • JDK vs JRE vs JVM
  • JVM - Java Virtual Machine
  • First Java Program
  • Variables
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  • Operators

Java Flow Control

  • Java If-else
  • Java Switch-Case
  • Java For loop
  • Java while loop
  • Java do-while loop
  • Continue statement
  • break statement

Java Arrays

  • Java Arrays

OOPs Concepts

  • OOPs Concepts
  • Constructor
  • Java String
  • Static keyword
  • Inheritance
  • Types of inheritance
  • Aggregation
  • Association
  • Super Keyword
  • Method overloading
  • Method overriding
  • Overloading vs Overriding
  • Polymorphism
  • Types of polymorphism
  • Static and dynamic binding
  • Abstract class and methods
  • Interface
  • Abstract class vs interface
  • Encapsulation
  • Packages
  • Access modifiers
  • Garbage Collection
  • Inner classes
  • Static import
  • Static constructor

Java Exception Handling

  • Exception handling
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  • Jav try catch finally
  • Exception Examples
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Collections Framework

  • Collections in Java
  • Java ArrayList
  • Java LinkedList
  • Java Vector
  • Java HashSet
  • Java LinkedHashSet
  • Java TreeSet
  • Java HashMap
  • Java TreeMap
  • Java LinkedHashMap
  • Java Queue
  • Java PriorityQueue
  • Java Deque
  • Comparable interface
  • Comparator interface
  • Collections Interview Questions

MORE ...

  • Java Scanner Class
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  • Java Regex
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  • Java Enum
  • Java Annotations
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