Java is a general-purpose high-level programming language that helps to build a variety of applications. Java is popular as it provides platform as it provides various features such as independency, security, multithread support. There are two types of Java as Core Java and Advanced Java. Core Java covers the fundamental concepts in the Java programming language. On the other hand, Advanced Java is the next level after Core Java.
What is Core Java?
It is a part of the Java programming language that one can use for developing or creating a general-purpose app. Its main focus is to build such general applications. The J2SE (Java Standard Edition) is known as Core Java. It mainly covers concepts of object-oriented programming (OOP). Its main pillars are inheritance, polymorphism, encapsulation, and abstraction. These are:
- Inheritance – It allows one to make use of the already existing class without even writing the code from the very beginning. It thus ensures code reusability in a better way.
- Polymorphism – It allows the writing of code in a certain way to make the object behave in multiple ways.
- Encapsulation – It combines methods and data into a single unit.
- Abstraction – It allows the writing of a code in a way that hides the details of implementation. It, in turn, reduces the complexity. Allows writing the code in a way that hides the implementation details to reduce complexity.
As an addition, Core Java also covers concepts like AWT, threading, swing, and collections. AWT and swing help in building powerful GUIs (Graphical User Interfaces). Threading, furthermore, assists in the simultaneous execution of multiple processes and the collections allow a user to manipulate a group of objects. All-in-all, Core Java covers all the basic and fundamental Java programming language concepts.
What is Advanced Java?
It is also a part of the Java programming language, and it usually deals with various online applications, like the web and mobile apps. Advanced Java is a level ahead of Cofre Java. It mainly covers more advanced concepts like database accessing and web technologies.
The J2EE (Java Enterprise Edition) is known as Advanced Java. It covers a wide range of topics. The Java Database Connectivity or JDBC is a standard Java API that builds independent connectivity between the language-based applications of Java and the databases, like MSSQL, MySQL, and Oracle. Apart from this, JSP and Servlets also allow the development of dynamic web applications. EJB functions to provide distributed features that are highly transactional. They help build enterprise applications. Along with this, the Java web services assist in building RESTful and SOAP web services. They provide users with a common platform for all the apps to communicate with each other.
Difference Between Core Java and Advanced Java
|Definition||Core Java primarily forms the stepping stone or fundamentals of any other more sophisticated or higher forms of Java. It also includes Advanced Java. A user won’t be able to develop or understand any application using the JAVA EE (Java Enterprise Edition) in the absence of the fundamentals and basic concepts of Core Java. Java covers everything- starting from the elementary principles of objects, classes, hierarchy, inheritance, and data types.||Advanced Java primarily covers all the advanced concepts related to Java. It offers specialization in the concepts that Core Java offers. From understanding all the database manipulations (even the complex ones) to the development of sophisticated web pages- Advanced Java does it all. Advanced Java basically derives from Core Java. But it stresses the more complicated concepts required to develop huge apps.|
|Areas or Topics||Core Java covers some topics like data types, OOP, operators, exception handling, swing, threading, and collections.||Advanced Java covers some topics like web services, database connectivity, JSP, Servlets, EJB, etc.|
|Uses||Core Java assists a user in building some general-purpose applications. These applications are generally independent of any platform. Examples include various event planning applications, graphic video games such as snakes, and calculators.||Advanced Java caters to building some enterprise-level apps required for more sophisticated uses. For instance, it helps a user create mobile and web applications, and more. Advanced Java works well here because these apps require data extraction from the databases, and they normally run on elaborate servers.|
|Type of Application||This programming basically covers the socket, swings, AWT, classes, collection objects, and thread concepts.||Advanced java programming only works for enterprise and web-based applications.|
|Architecture||Core Java makes use of the single-tier architecture. Thus, it is known as a stand-alone application. In a single-tier application, there is zero third-party interaction. Core Java makes use of device storage or heap storage- localized to cater to the user’s needs.||Advanced Java, in contrast, makes use of the two-tier architecture, meaning the backend or server-side application and client-side architecture. It requires the use of more robust Client-server architecture. It primarily involves continuous interaction with the client, web servers, and database for acquiring the required information. These kinds of structures have their interfaces handled by a client and their database fetched by a server.|
|Edition/Version of Java||The J2SE (Java Standard Edition) falls under Core Java.||The J2EE (Java Enterprise Edition) falls under Advanced Java.|
|Expertise||You cannot create or develop an advanced java app without using Core Java. It is a prerequisite for developing all the advanced Java applications.||The Advanced Java version’s reach is limited to a few specializations like DOM (web), Database, Networking, etc.|
|Coding Platform||Core Java normally comes into play when writing on Java Standard Edition (Java SE).||Advanced Java is useful when coding on the Java Enterprise Edition (Java EE).|
|Purpose||Core Java does not deal with socket programming, databases, etc.||Advanced Java deals with DOM, socket programming, and network applications.|
|Package||This programming language provides the java.lang.* package.||This programming language provides the java.servlet.* package.|