Java seminar
- 1. Presented By :- DEVENDRA KHAIRWA
- 2. Programming language is a vocabulary and set of grammatical rules for instructing a computer to perform specific tasks. Types of programming language 1. Procedure-oriented programming language COBOL, FORTRAN, and C 2. Object oriented programming language C++, Java, and PHP
- 3. Procedure-oriented programming language In procedural programming our code is organized into small "procedures" that use and change our data. So our data move openly around the system from function to function.
- 4. Object oriented programming language In Object oriented programming the data and related functions are bundled together into an "object". So that not even any other functions of the same program can use other data and our data will remain safe.
- 5. Concept of OOPS OOPS Features in brief The programming in which data is logically represented in the form of a class and physically represented in the form an object is called as object oriented programming (OOP). OOP has the following important features.
- 6. Concept of OOPS OOPS Features in brief Data Encapsulation : Encapsulation means wrapping up data and member function (Method) together into a single unit i.e. class. Data Abstraction : Abstraction is the process of hiding out the working style of an object and showing only the required information of the object in understandable manner. Advantage of data abstraction is security.
- 7. Concept of OOPS OOPS Features in brief Inheritance : Creating a new class from an existing class is called as inheritance. Advantage of inheritance is reusability of the code. Polymorphism : Polymorphism means having more than one form. In this different classes can have different behaviors for the same operation. Polymorphism can be achieved with the help of overloading and overriding concepts.
- 8. Why do we need java ? Trouble with C/C++ language is that they are not portable and are not platform independent language. Emergence of world wide web which demand portable programs. Portability and security necessitated the invention of JAVA.
- 9. History of JAVA JAVA is general purpose object oriented programming language developed by James Gosling and colleagues at Sun Microsystems in the early 1990s with promise to Write Once Run Anywhere and JVM make it possible.
- 10. What is JVM ? The heart of the Java platform is the concept of a "virtual machine“ JVM is a virtual machine that provides runtime environment where JAVA program runs. It makes JAVA platform independent because JVM self work as platform for all JAVA programs.
- 11. Editions of JAVA J2SE(JAVA 2 Standard Edition) – to develop client-side stand alone applications or applets. J2EE(JAVA 2 Enterprise Edition) – to develop server- side applications such as JAVA servlet and JAVA server pages. J2ME (JAVA 2 Micro Edition) – to develop applications for mobile devices.
- 12. Advantages of Java Simple Object oriented Architecture –neutral Portable Secure Multithreaded.
- 13. Some features of JAVA Automatic type checking Automatic garbage collection No directly accessible pointer to memory Multi threading
- 14. Introduction to JDBC Java Database Connectivity (JDBC) is a Java Application Programming Interface (API) for executing SQL statements. It consists of a set of classes and interfaces written in Java. It extends the various features of java, such as security, platform independence, easy understanding and usage.
- 15. The JDBC provides a standard interface for accessing a database. Java applications use the JDBC API to connect with a database through a database driver.
- 16. JDBC ARCHITECTURE Java applications cannot communicate directly with a database to submit the data & retrieve results of queries. This is because a database can interpret SQL statements only and not Java language statements. Therefore, we need a mechanism to translate Java statements into SQL statements and vice-versa. The JDBC architecture provides the mechanism for this kind of translation.
- 18. Device running on JAVA Set–top boxes ATM Printers Web cams Games Car navigation systems Lottery terminals Medical devices Parking payment stations
- 19. Certification in JAVA Getting certified is a great way to invest in your professional development and to help boost your career potential. Sun offers the following certifications for Java technologies: Java Platform, Standard Edition (Java SE) Sun Certified Java Associate Sun Certified Java Programmer Sun Certified Java Developer
- 20. Certification in JAVA Java Platform, Enterprise Edition (Java EE) Sun Certified Web Component Developer Sun Certified Business Component Developer Sun Certified Developer for Java Web Services Sun Certified Enterprise Architect Java Platform, Micro Edition (Java ME) Sun Certified Mobile Application Developer