Java Training

• Java basics and its importance in the modern world
• Overview of core Java and programming concepts 
• Collections, Inheritance,  and Threads in Java
• Connecting with multiple applications using JDBC
• Storing Dynamic data using HashMap and Array. 
• Creating threads in Java 
• Implementing real-world projects to gain practical exposure.

• Software developers 
• Web Designers
• Architects
• Graduates and professionals who wish to build their career in the Java programming world.

There is not even a single prerequisite to take up this course. Anybody who is interested in learning this course can join and learn this course.

• Java is one of the widely used programming languages globally. 
• It is extensively used for developing cutting-edge applications for web and mobile. 
• Java is very simple to learn, implement, and debug and these features have made it a first choice for the  world wide organizations. 
• Being a Java developer you will gain more advantages such as more number of career options, high salary packages and much more.

The average salary received by a Java professional is $69,722 per year - Payscale.com

Following are the typical job roles available for a Java Professional.

• Java Developer
• EJB Programmer
• Application developer
• Web developer
• Tester
• Software Developer/Engineer
• Graphic designer

If you gain all the Java skills you will get a chance to work with the global companies like below:

• Amazon
• Capgemini
• Accenture
• Paypal 
• Bosch
• DELL
• Mphasis
• MindLabs and a lot more other large, medium and small scale organizations.

JAVA DATABASECONNECTVITY(JDBC)

Introduction to Web Application, Need for Web Application, Technologies used in Web Application, Web Architecture Models –-- Model-1 and Model-2, Introducing MVC Architecture

Introducing CGI, pros & cons of CGI, What is Servlet?, Need of Servlet, About ServletContainer, Servlet API, About javax.servlet.Servlet interface, Servlet LifeCycle, About ServletConfig, About GenericServlet Configuring Servlets on Tomcat 6.x, BEA Weblogic 8.1/9.x/10 (On Windows/Linux), IBM Websphere 6.0 and Pramati 4.1 servers

About ServletRequest and ServletResponse, About Request Parameters, About Initialization Parameters, Need of initialization parameters, About RequestDispatcher, Using RequestDispatcher to Forward & Include, When to use Include & Forward, Difference between Include & Forward, Request Attributes, Understanding Http basic, Understanding HttpServlet, HttpServletRequest & HttpServletResponse

Need to maintain client data, URL Rewriting, pros & cons of URL Rewriting, benefits of URL Rewriting, When to use URL Rewriting, Hidden Form Fields, Pros & cons of Hidden Form Fields, When to use Hidden Form Fields, Cookies, Pros & Cons of Cookies, When to use Cookies, Http Session, Pros & Cons of Http Session, When to use Http Session, Context Attributes, Need of context attributes, How to configure context attribute, How to access context attribute, Example demonstrating the usage of Context Attributes, About various scopes, When to use which scope, Single Thread Model, Need of synchronization in Servlets, Using SingleThreadModel

Need of filters, Filter Interception Design Pattern, Changes in Servlet 2.4 in filter configurations, Configuring Filters to work with Forward & Include, About Listeners, What are Listeners?, Need of event programming and importance of Listeners, The Various Listeners (ServletContextListener, ServletContextAttributeListener, HttpSessionListener, HttpSessionBindingListener, HttpSessionAttributeListener, HttpSessionActivationListener), About Servlet Wrappers (ServletRequestWrapper, ServletResponseWrapper, Http Request and Response Wrappers)

Introducing Security (JAAS), Authentication, Authorization, Data Integrity, Introducing Web Security, Http Authentication Mechanism, Http Basic Authentication model, Http FORM based Authentication model, Http Digest Authentication Model, Declarative Security, Working with declarative security in web application, Programmatic Security, Working with programmatic security in web application

Introducing to JSP

JSP Introduction, Difficulties in using Servlets to build huge views, Need for alternative approach to built dynamic web pages, Introducing tag based approach, JSP architecture, JSP Lifecycle (Translation, Compilation, Initialization, Request processing, Destroying)

Scripting Tags (Scriptlet tag, Declarative Tag, Expression Tag), Implicit Objects, Need of Implicit Objects, About all the implicit objects (request, response, out, page, application, session, config, exception), Directive Tags (Page directive, include directive, taglib directive)

What is Java Bean?, Need of java Beans, Advantages of using Java Beans, Action Tags (include, forward, param, useBean, setProperty, getProperty, plugin, params, fallback) , Differences between directive include and action include

JSP Custom Tags, Need of custom tags, Empty Tags, Tag Handler Life Cycle, Body Content Tag, Body Tag Handler Life Cycle, Iteration Tags, Iteration Tag Handler Life Cycle, Simple Tags

Introduction to Internationalization, Need Of Internationalization, Internationalizing Web Application

Web Tier Design Considerations, MVC (Model View Controller), Filter Interception, Front Controller, Composite View, Business Delegate, DAO (Data Access Object), DTO (Data Transfer Object), Command Pattern, Application implementing MVC architecture

Introduction to MVC 1 and MVC 2 architecture

1.  SPRING4.x- -> (XML BASED CONFIGURATION AND ANNOTATION BASED CONFIGURATION)

• Spring Core
• Spring DAO
• Spring ORM
• Spring Web MVC
• Spring AOP
• Spring Security

2. HIBERNATE 5.x-(XML BASED CONFIGURATION AND ANNOTATION BASED CONFIGURATION)

• What is ORM?
• What are the Main Features of ORM?
• Why Object/Relational Mapping(ORM)?
• Understanding Hibernate Architecture
• Configuration
• SessionFactory
• Session
• Query
• Criteria
• HiberNate Configuration
• Hibernate Mappings
• Persistent Classes
• Using Hibernate to Perform Basic Persistent Operations
• Step1: PrepareConfigurationObject
• Step2: BuildSessionFactory
• Step3: ObtainaSession
• Step4: PerformPersistenceOperations
• Step5: Close the Session
• Working with Hibernate to perform Basic CRUD Operations...
• Understanding Persistent Classes Mapping
• Problem ofGranularity
• Working with Component Types
• Problem of SubTypes
• Table perClassHierarchy
• Implementing TableperClassHierarchy
• Table perSubclass
• Table erConcrete Class
• Problem of Relationships
• One-to-One
• One-to-Many
• Many-to-Many
• Understanding Hibernate QueryLanguage(HQL)And Criterion Api
• Introducing HQL
• Using Hibernate ApI to Execute Hql Queries
• Obtaining a Query Instance
• Cusomizing the Object
• Executing the Query
• Preparing Hql Queries to Retrieve Persistent Objects
• The From Clause
• The Select Clause
• Using Constuctor Expression in SELECT Clause
• Using Aggregate Select Expression in SELECT Clause
• The Where clause
• Positional Parameters
• Named parameters
• Named Queries
• Using Criterion API to Build Queries
• Adding Restrictions to Criteria
• Using HQL to perform Bulk Update and Delete Operations
• NATIVE SQL
• Implementing Servlets with Hibernate
• Implementing Servlets with Hibernateand Ejb
• Implementing Struts with Hibernate
• Implementing Spring with Hibernate
• criteriaApi
• relationships(one-many,many-one)
• inheritancemapping
• caching

3  Xml & Web Services(SOAP|RESTFul)

• Service-Oriented Architecture with Java Web Services
• An Overview of Java Web services
• JAXP(DOM | SAX)
• JSON Object
• JAXB
• SopBased Web Services
  • Jax-RPC
  • JAX-WS
• RestFullWebservcies
  • Jax-Rs
  • JerseyClient
  • HttpClient
  • PostMan
  • GoogleChormeClient
• Springs with RestFullWebservcies services
• SpringBoot with RestFullWebServices

• Maven
• Junit
• Github(Version Controlled)
• Log4j

• HTML
• CSS
• Bootstrap
• JavaSCript
• Type Script
• Angularjs

• Jenkins
• Cassandra
• Application Servers(Weblogic|JBoss Server)
• JMS(Spring JMS & Mailing)

• Total Course Duration: Based On Student
• Timings: Morning hrs or Evening hrs. (Please check with us for available time slots)
• Method:Online, Instructor led, with exercises.
• Breaks:As Required, but limited to total of 1 HOUR 30 min. in a day.(As per Company plan)
• Required Software and training material shall be provided.

Wrapper classes convert the Java primitives into the reference types (objects). Every primitive data type has a class dedicated to it. These are known as wrapper classes because they “wrap” the primitive data type into an object of that class. Refer to the below image which displays different primitive type, wrapper class and constructor argument.

Singleton class is a class whose only one instance can be created at any given time, in one JVM. A class can be made singleton by making its constructor private.

Equals() method is defined in Object class in Java and used for checking equality of two objects defined by business logic.

“==” or equality operator in Java is a binary operator provided by Java programming language and used to compare primitives and objects. public boolean equals(Object o) is the method provided by the Object class. The default implementation uses == operator to compare two objects. For example: method can be overridden like String class. equals() method is used to compare the values of two objects.

Packages in Java, are the collection of related classes and interfaces which are bundled together. By using packages, developers can easily modularize the code and optimize its reuse. Also, the code within the packages can be imported by other classes and reused. Below I have listed down a few of its advantages: ● Packages help in avoiding name clashes ● They provide easier access control on the code ● Packages can also contain hidden classes which are not visible to the outer classes and only used within the package ● Creates a proper hierarchical structure which makes it easier to locate the related classes

JIT stands for Just-In-Time compiler in Java. It is a program that helps in converting the Java bytecode into instructions that are sent directly to the processor. By default, the JIT compiler is enabled in Java and is activated whenever a Java method is invoked. The JIT compiler then compiles the bytecode of the invoked method into native machine code, compiling it “just in time” to execute. Once the method has been compiled, the JVM summons the compiled code of that method directly rather than interpreting it. This is why it is often responsible for the performance optimization of Java applications at the run time.

Object-oriented programming or popularly known as OOPs is a programming model or approach where the programs are organized around objects rather than logic and functions. In other words, OOP mainly focuses on the objects that are required to be manipulated instead of logic. This approach is ideal for the programs large and complex codes and needs to be actively updated or maintained.

An infinite loop is an instruction sequence in Java that loops endlessly when a functional exit isn’t met. This type of loop can be the result of a programming error or may also be a deliberate action based on the application behavior. An infinite loop will terminate automatically once the application exits.

Java String pool refers to a collection of Strings which are stored in heap memory. In this, whenever a new object is created, String pool first checks whether the object is already present in the pool or not. If it is present, then the same reference is returned to the variable else new object will be created in the String pool and the respective reference will be returned.

In Java, constructor chaining is the process of calling one constructor from another with respect to the current object. Constructor chaining is possible only through legacy where a subclass constructor is responsible for invoking the superclass’ constructor first. There could be any number of classes in the constructor chain. Constructor chaining can be achieved in two ways: 1. Within the same class using this() 2. From base class using super()

The Java ClassLoader is a subset of JVM (Java Virtual Machine) that is responsible for loading the class files. Whenever a Java program is executed it is first loaded by the classloader. Java provides three built-in classloaders: 1. Bootstrap ClassLoader 2. Extension ClassLoader 3. System/Application ClassLoader

Java is not 100% Object-oriented because it makes use of eight primitive data types such as boolean, byte, char, int, float, double, long, short which are not objects.

In Java, constructor refers to a block of code which is used to initialize an object. It must have the same name as that of the class. Also, it has no return type and it is automatically called when an object is created. There are two types of constructors: 1. Default Constructor: In Java, a default constructor is the one which does not take any inputs. In other words, default constructors are the no argument constructors which will be created by default in case you no other constructor is defined by the user. Its main purpose is to initialize the instance variables with the default values. Also, it is majorly used for object creation. 2. Parameterized Constructor: The parameterized constructor in Java, is the constructor which is capable of initializing the instance variables with the provided values. In other words, the constructors which take the arguments are called parameterized constructors.

Java doesn’t use pointers because they are unsafe and increases the complexity of the program. Since, Java is known for its simplicity of code, adding the concept of pointers will be contradicting. Moreover, since JVM is responsible for implicit memory allocation, thus in order to avoid direct access to memory by the user, pointers are discouraged in Java.

In Java, access modifiers are special keywords which are used to restrict the access of a class, constructor, data member and method in another class. Java supports four types of access modifiers: 1. Default 2. Private 3. Protected 4. Public

An object is a real-world entity that has a state and behavior. An object has three characteristics: 1. State 2. Behavior 3. Identity An object is created using the ‘new’ keyword. For example: ClassName obj = new ClassName();

Object-Oriented Programming or OOPs is a programming style that is associated with concepts like: 1. Inheritance: Inheritance is a process where one class acquires the properties of another. 2. Encapsulation: Encapsulation in Java is a mechanism of wrapping up the data and code together as a single unit. 3. Abstraction: Abstraction is the methodology of hiding the implementation details from the user and only providing the functionality to the users. 4. Polymorphism: Polymorphism is the ability of a variable, function or object to take multiple forms.

In Java, string objects are immutable in nature which simply means once the String object is created its state cannot be modified. Whenever you try to update the value of that object instead of updating the values of that particular object, Java creates a new string object. Java String objects are immutable as String objects are generally cached in the String pool. Since String literals are usually shared between multiple clients, action from one client might affect the rest. It enhances security, caching, synchronization, and performance of the application.

Inheritance in Java is the concept where the properties of one class can be inherited by the other. It helps to reuse the code and establish a relationship between different classes. Inheritance is performed between two types of classes: 1. Parent class (Super or Base class) 2. Child class (Subclass or Derived class)

Composition is again a specialized form of Aggregation and we can call this as a “death” relationship. It is a strong type of Aggregation. Child object does not have their lifecycle and if parent object deletes all child object will also be deleted. Let’s take again an example of a relationship between House and rooms. House can contain multiple rooms there is no independent life of room and any room can not belongs to two different houses if we delete the house room will automatically delete.