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ArrayList in Java With Examples

Last Updated: September 19, 2022 by Chaitanya Singh | Filed Under: java

Arraylist class implements List interface and it is based on an Array data structure. It is widely used because of the functionality and flexibility it… [Read More]

Tags: Collections, Java-ArrayList

fn:trim() and fn:startsWith() JSTL Functions

Last Updated: December 2, 2013 by Chaitanya Singh | Filed Under: JSTL

In this post we are discussing two functions which operates on strings. These functions are fn:trim() and fn:startsWith(). Function fn:trim() removes spaces from beginning and… [Read More]

fn:substring(), fn:substringAfter() & fn:substringBefore() Functions

Last Updated: December 2, 2013 by Chaitanya Singh | Filed Under: JSTL

In this tutorial we will discuss fn:substring (), fn:substringAfter() and fn:substringBefore() functions of JSTL. All of these functions are used for getting a part of the string… [Read More]

fn:join() and fn:split() JSTL Functions

Last Updated: December 2, 2013 by Chaitanya Singh | Filed Under: JSTL

In this tutorial we will see fn:join() and fn:split() functions of JSTL. fn:join() It concatenates the strings with a given separator and returns the output… [Read More]

fn:toUpperCase() – JSTL Function

Last Updated: December 1, 2013 by Chaitanya Singh | Filed Under: JSTL

It is just opposite of fn:toLowerCase() function. It converts input string to a uppercase string. All the characters of input string gets replaced with corresponding… [Read More]

fn:toLowerCase() – JSTL Function

Last Updated: December 1, 2013 by Chaitanya Singh | Filed Under: JSTL

This function converts a string into lowercase string. Any upper case character in the input string is replaced with the corresponding lowercase character. Syntax String… [Read More]

fn:replace() – JSTL Function

Last Updated: December 1, 2013 by Chaitanya Singh | Filed Under: JSTL

It search for a string in the input and replace it with the provided string. The following is the basic syntax of fn:replace() function. Syntax… [Read More]

fn:length() – JSTL Function

Last Updated: December 1, 2013 by Chaitanya Singh | Filed Under: JSTL

The JSTL function fn:length() is used for computing the length of a string or to find out the number of elements in a collection. Syntax… [Read More]

fn:indexOf() – JSTL Function

Last Updated: December 1, 2013 by Chaitanya Singh | Filed Under: JSTL

fn:indexOf() function is used for finding out the start position (index) of a string in the provided string. Syntax int indexOf(String,  String ) The return… [Read More]

fn:escapeXml() – JSTL Function

Last Updated: December 1, 2013 by Chaitanya Singh | Filed Under: JSTL

fn:escapeXml() JSTL function is used for HTML/XML character escaping which means it treats html/xml tags as a string rather than markup tags. It is similar… [Read More]

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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
  • Data Types
  • 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
  • Java try-catch
  • Java throw
  • Java throws
  • Checked and Unchecked Exceptions
  • Jav try catch finally
  • Exception Examples
  • Exception Propagation

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
  • Java 8 Features
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  • Java Serialization
  • Java Regex
  • Java AWT
  • Java Swing
  • Java Enum
  • Java Annotations
  • Java main method
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