
Quick Contact
Java Tutorial
- What is Java?
- History of Java
- Hello Java Program
- Features of Java
- Basic Syntax
- Java Setup
- Data Types in Java
- Java Variables
- Operators in Java
- JVM
- Java If-else Statement
- Switch Case Statement
- Java Loops
- Do-While Loop
- Java While Loop
- Continue Statement
- Break Statement in Java
- Constructors in Java
- Oops Concept in Java
- Features of OOPs
- Inheritance
- Exeception handeling
- Aggregation (HAS-A relationship) in Java
- Method Overriding in Java
- Method Overloading
- Java Static Keyword
- Java This Keyword
- Java Final Keyword
- Polymorphism
- Static Binding and Dynamic Binding
- Abstract class in Java
- Access Modifiers in Java
- Difference between abstract class and interface
- Interface in Java
- Garbage Collection in Java
- Java Package
- Encapsulation
- Serialization and Deserialization in Java
- Java Inner Classes
- Java Applets
- Multithreading in Java
- Thread Priorities in Java
- Thread Creation
- Inter Thread Communication
- Wrapper Classes in Java
- Java Input Output
- Java AWT Introduction
- Java Layout Manager
- Java Layout Policy
- Java AWT Events
- Collection Framework
- Collection Framework List Interface
- Swing in Java
- Swing Utility Classes
- Swing Layout Managers
- Java JDBC
- Hibernate Framework Overview – Architecture and Basics
Springboot
- Spring Environment Setup
- Spring Boot CRUD REST API Project using IntelliJ IDEA | Postman | MySQL
- Dockerizing Spring Boot Application | Spring Boot Docker Tutorial
- spring-boot-restapidocumentation with swagger
- Spring Boot HttpClient Overview
- Apache HttpClient POST HTTP Request Example
- Apache HttpClient PUT HTTP Request Example
- Apache HttpClient DELETE HTTP Request Example
- Apache HttpClient HTML Form POST Request Example
- Spring Boot JSP Exampl
- Deploying Spring Boot WAR file with JSP to Tomcat
- Spring Boot Annotations
- Spring Core Annotations
- Spring MVC Annotations with Examples
- Spring Scheduling Annotations
- Spring - Java-based Container Configuration
- Spring Java Based Configuration Example
Hibernate
- Hibernate 5 hello world
- Hibernate- One to One Unidirectional Mapping Annotation Example
- Hibernate - Batch Processing
- Hibernate - Interceptors
- Hibernate 5 - Create, Read, Update and Delete (CRUD) Operations Example
- Hibernate Transaction Management
- Hibernate One to Many Unidirectional Mapping Example
- Hibernate One to Many Bidirectional Mapping Example
- Hibernate Many to Many Annotation Mapping Example
- Hibernate Primary KeyJoin Column
- Hibernate First Level Cache with Example
- Hibernate XML Configuration Example with Maven + Eclipse + MySQL Database
- Hibernate Java Configuration Example
- JPA 2 with Hibernate 5 Bootstrapping Example
- JPA and Hibernate Cascade Types
- Hibernate/JPA - Primary Key Generation
- Hibernate 5 - Enum Type Mapping Example
- Hibernate Component Mapping
- Hibernate Object States – Transient,Persistent and Detached
- Hibernate 5 - Save an Entity Example
- Hibernate 5 - Persist an Entity Example
- Hibernate 5 - saveOrUpdate() Method Example
- Hibernate 5 - get(), load() and byId() Method Examples
- Hibernate 5 - merge() Example
- Hibernate 5 - Delete or Remove an Entity Example
- Hibernate 5 - load() Method Example
- Hibernate Session Interface Methods
- Hibernate Session.clear() Method Example
- Introduction Of Java strutes to Architecture
- Struts 2 - Architecture
- Struts 2 - Configuration Files
- Struts 2 - Actions
- Struts 2 - Interceptors
- Struts 2 - Results & Result Types
- Struts 2 - Value Stack/OGNL
- Struts 2 - File Uploading
- Struts 2 - Database Access
- Struts 2 - Validations Framework
JAVA FX
- JavaFX Tutorial
- Introduction to JavaFX Pane
- JavaFX Popup
- JavaFX group
- JavaFX Controller
- JavaFX Gradient Color
- JavaFXAnchorPane
- JavaFXTabPane
- JavaFX Scene
- JavaFX Stage
- JavaFXWebView
- JavaFX Timeline
- JavaFX Timer
- JavaFX Image
- JavaFX Background
- JavaFX dialog
- JavaFX Font
- JavaFXTextArea
- JavaFXObservableList
- JavaFX GUI
- JavaFX FXML
- JavaFXEventHandler
- JavaFXGradle
- JavafxScrollpane
- JavaFXAPI
Collection Framework List Interface
The List Interface:
A list is an ordered collection is known as sequence. The List interface extends Collection and declares the behavior of a collection that stores a sequence of elements.
Elements can be inserted or accessed by their position in the list, using a zero based index. A list may contain duplicate elements. In addition to the methods defied by collection, List defines some of its own.
Methods in the List Interface:
boolean add(Object o)
Appends the specified element to the end of this list (optional operation). The method is defined in the Collection interface but as part of the List interface it should be implemented so as to always add the element at the end of the list.
void add(int index, Object element)
Inserts the specified element at the specified position in this list (optional operation). Any pre-existing elements at or beyond the point of insertion are sifted up. Thus, no elements are overwritten.
boolean addAll(Collection c)
Appends all of the element in the specified collection to the end of this list, in the order that are returned by the specified collections iterator(optional operation). The method is defined in the Collection interface but as part of the List interface it should be implemented so as to always add the element at the end of the list.
boolean addAll(int index, Collection c)
inserts all of the elements in the specified collection into this list at the specified position (optional operation). Returns true if the invoking list changes and returns false otherwise.
boolean addAll(int index, Collection c)
Inserts all of the elements in the specified collection into this list at the specitied position (optional operation). Returns true if the invoking list changes and returns false otherwise.
Object get(int index)
Returns the element at the specified position in this list.
int indexOf(Object o)
Returns the index in this list of the first occurrence of the specified element, or -1 if list does not contain the element.
int lastIndexOf(Object o)
Returns the index in this list of the last occurrence of the specified element, or -1 if list does not contain the element.
ListIterator iterator( )
Returns a list iterator of elements in this list (in proper sequence).
ListIterator iterator(int index)
Returns a list iterator of elements in this list (in proper sequence), starting at the specified position in this list.
Object remove(int index)
Removes the elements at the specified position (optional operation) and returns deleted element. The resulting list is compacted. That is, the indexes of subsequent element are decremented by one.
Object set(int index, Object element)
Replaces the element at the specified position in this list with the specified element (optional operation).
List subList(int fromIndex, int toIndex)
Returns a list that includes elements from start to end-1 in the invoking list. Elements in the returned list are also referenced by the invoking object.
ArrayList
The ArrayList class extends AbstractList and implements the List interface. The ArrayList supports dynamic arrays that can grow as needed. In java, standard array are of a fixed length.
After arrays are created, they cannot grow or shrink, which means that we must know in advance how many elements an array will hold. But, sometimes, we don’t know size of an array until run-time. To handle this situation, the collections framework defines ArrayList.
An ArrayList is a variable-length array of object references that is, an ArrayList can dynamically increase or decrease in size. Array lists are created with an initial size.
When the size is exceeded, the collection is automatically enlarged, when objects are removed, the array may shrunk. Using generics feature introduced in J2SE 5, it is possible to restrict the type of elements to be added in the ArrayList.
Note:-
The legacy class Vector also supports dynamic arrays.
The ArrayList class executes the List interface. It utilizes a powerful exhibit to store the copy component of various information types. The ArrayList class keeps up the addition request and is non-synchronized. The components put away in the ArrayList class can be arbitrarily gotten to.
Example
import java.util.*; class DemoJavaCollection1{ public static void main(String args[]){ ArrayList< String> list=new ArrayList< String>();//Creating arraylist list.add("Ram");//Adding object in arraylist list.add("Shyam"); list.add("Geeta"); list.add("Rani"); //Traversing list through Iterator Iterator itr=list.iterator(); while(itr.hasNext()){ System.out.println(itr.next()); } } }
Output
Ram
Shyam
Geeta
Rani
Apply now for Advanced Java Training Course