Tag: Java

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Create a Struts2 login page

Added by 3 years ago

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Welcome to this new Struts 2 tutorial, I'll try to show you how you can develop a Struts 2 Login Form. Step 1: Create a new dynamic project. Step 2: Add the struts 2 library in the lib directory of the dynamic w...

Full HD Hibernate tutorial series [part 10] – Add a primary key

Added by 4 years ago

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How to add a UNIQUE field? @GeneratedValue //It generates a unique value How to add a UNIQUE primary key field and make it auto-complete? @GeneratedValue(strategy=GenerationType.AUTO) //It generates a uni...

Full HD Hibernate tutorial series [part 2] – Configure Eclipse with Hibernate

Added by 4 years ago

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1. Create a "User library" Using top menu click "Window" -> "Preferences" -> Type user -> "User Librairies" -> "New" Click "Add Jar" -> "DerbyClient.jar" Click "Add Jar" -> Select Hibernate J...

Full HD Hibernate tutorial series [part 3] – Write hibernate.cfg.xml file

Added by 4 years ago

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Your hibernate.cfg.xml file should look like this <property name="hibernate.connection.driver_class"> org.apache.derby.jdbc.ClientDriver </property> <property name="hibernate.connection.url"> jdbc:...

Full HD Hibernate tutorial series [part 4] – Create Employee class

Added by 4 years ago

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The Employee class should look like this @Entity public class Employee{ private int empId; private String empName; @Id public int getEmpId(){ return empId; } public void setEmpId(int empId){ ...

Full HD Hibernate tutorial series [part 5] – Write a TestEmployee test class

Added by 4 years ago

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public class TestEmployee{ public static void main(){ AnnotationConfiguration conf = new AnnotationConfiguration5-, conf.addAnnotatedClass(Employee.class); new SchemaExport(conf).create(true, true); } }

Full HD Hibernate tutorial series [part 6 ] – Create your own Schema

Added by 4 years ago

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Add this line to your hibernate.cfg.xml file <property name="hibernate.default_schema"> TESTSCHEMA <property> Using SQL scrapbook, execute this statement CREATE SCHEMA testSchema;

Full HD Hibernate tutorial series [part 7] – Insert data into database

Added by 4 years ago

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public class TestEmployee{ public static void main(){ AnnotationConfiguration conf = new AnnotationConfiguration5-, conf.addAnnotatedClass(Employee.class); new SchemaExport(conf).create(true, true); ...

Full HD Hibernate tutorial series [part 8] – Questions and answers about Hibernate

Added by 4 years ago

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What are the uses of @Entity and @Id tag? @Entity annotation indicates that the class should persist to the database. @Id annotation represents a unique primary key How do you tell Hibernate which classes are to ...

Full HD Hibernate tutorial series [part 9] – More annotations

Added by 4 years ago

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How to give a custom name of a table? @Table(name="myTableName") How to give a custom name of a column? @Column(name="myColumnName") How to prevent an attribute in a class from being saved into database table? @T...

How to debug Android applications?

Added by 4 years ago

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1. Debugging Android applications 1.1. Android debuggable attribute in the AndroidManifest.xml If you develop Android applications you can debug them via Eclipse. To enable debugging an a real Android ...

How to doawnload and install the Java Development Kit?

Added by 4 years ago

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***MAKE SURE TO WATCH IN HIGH QUALITY**** How to download and install the Java Development Kit

How to use the Logging API in Java programs

Added by 4 years ago

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1. Overview 1.1. Logging Logging is the process of writing log messages during the execution of a program to a central place. This logging allows you to report and persists error and warning messages a...

Impact of new platforms such as NoSQL, DevOps, and the cloud on the future of Enterprise Java

Added by 3 years ago

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I'm going to talk about new challenges and approaches for and prints over mister if there are any questions feel free to ask me What I'm going to talk about is which challenges I C for enterprise Java in general and ...

Implement many to many relationship in hibernate

Added by 3 years ago

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Hibernate Many-to-many Relationships - Many to many example in Hibernate. In this example we have used xml metadata. Now we will learn many-to-many relationships. Let's try many-to-many example. The many-to-many ta...

Implement one to one mapping with Hibernate

Added by 3 years ago

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A one-to-one association is similar to many-to-one association with a difference that the column will be set as unique. For example an address object can be associated with a single employee object.... Let us devel...

Importance and role of OGNL and ValueStack in Struts2 Framework

Added by 4 years ago

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http://java9s.com In this session i have explained about the importance and role of OGNL and ValueStack in Struts2 Framework. i have explained how OGNL offers the expression language in form tags and type conversion....

Introduction to Struts MVC Framework

Added by 3 years ago

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The Struts Framework is a standard for developing well-architected Web applications. It has the following features: Open source Based on the Model-View-Controller (MVC) design paradigm, distinctly separating all thr...

JSF and Glassfish setup tutorial

Added by 3 years ago

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JavaServer Faces technology is a server-side component framework for building Java technology–based web applications. JavaServer Faces technology consists of the following: An API for representing components and...

JSF Managed Bean

Added by 3 years ago

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Hey guys and let's get started with the tutorial: so in this tutorial we will discuss Managed Bean so how to create Managed Bean and how can a Java class interact with Java server faces? So first, let's create a ne...

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