Java seminar
- 2. About Us We Alpran Software Pvt. Ltd. (ASPL) are 18 years old institute in the field of Education & Training . We have trained more than lakhs of candidates during the period in University courses, IT/ITeS, Insurance, PMKVY 1.0, PMKVY 2.0 β¦ Now we have added one more feature with us β HR Consultancy .. . Few of our renowned partners are TCS Varanasi, Kotak Mahindra, Whirlpool, Team lease β¦etc
- 3. Courses offered - Operating System: MS WINDOWS, Red Hat Linux Programming Languages: C, C++, Java, Android, .Net,PHP,HTML5, JavaScript, Databases: SQL Server 2008 , Oracle 10g and 11g , MySql Technologies: .NET Framework 3.5, ASP.NET 3.5, Servlet, JSP, Struts Tools and Other Utilities: Microsoft Visual Studio.NET, Microsoft Office, TallyErp9 with GST, AutoCAD, DTP , Industrial Training: JAVA, Dot Net, PHP, Android etc.. Skill enhancement: Personality Development and Soft skills Interview preparation
- 11. What we'll cover ο΅ OOPs Concept ο΅ Origin of Java ο΅ Features of Java ο΅ Writing Java Classes ο΅ Calculator program ο΅ Windows application
- 12. Object-Oriented Approach ο΅ Class ο΅ Object ο΅ Abstraction ο΅ Encapsulation ο΅ Inheritance ο΅ polymorphism
- 13. Object-Oriented Approach CLASS- ο΅ It is group of object which have common structure and behavior. ο΅ It is blueprint of objects that describes the state, behavior, identity and responsibility of objects. OBJECT- An object is an entity which have a well defined structure and behavior. An object has certain characteristics as- 1. State- The state of an object include current value of all its attributes. 2. Behavior:-it is how an object acts and reacts, in term of its state change and message passing. 3. Identity-it is that property of an object which distinguishes it from all other objects. 4. Responsibility-it is the role it serves within the system.
- 14. Object-Oriented Approach Abstraction- ο΅ Abstraction is the process of identifying the key aspect of an entity and ignoring the rest. ο΅ Only those aspect are selected that are important to the current problem scenario. Encapsulation- Encapsulation is mechanism used to hide data, Internal structure and implementation details of an object.
- 15. Object-Oriented Approach Inheritance - It is the process by which one object acquire the of other objects. Polymorphism- The word polymorphism combined from two words: ploy means many and multiple is form. Thus, polymorphism is the ability to take more than one form. Containment- One object contain another as a parts of its attribute.
- 16. About Language 1. Natural Language:- It is medium of communication through which we can share our emotions and ideas with each other. for Ex- Hindi, English etc. 2. Computer Language:- It provide us medium through which human beings and machine both communicate with each other. for Ex- C,C++, Java etc.
- 17. Origin of Java ο΅ In early 1960s Many languages were used to develop Application Software but only for specific purpose for example- FORTRAN ( FORmula TRANslator ) language was used to develop application software only for Scientific or engineering purpose where as COBOL(Common Business Oriented Language) language was used to develop application software only for Commercial purpose. ο΅ In those days there was no special language available through which programmer can developed any purpose related application software therefore, to overcome this problem ALGOL-60 Language was developed by International committee in 1960.
- 18. Origin of Java B ( Ken Thompson 1970 )
- 19. History ο΅ Java is a general purpose, object oriented , Simple, Reliable, portable, secure, platform independent and power full language. ο΅ It was developed by Sun Microsystem of USA in 1991 and originally called Oak by James Gosling. Oak was renamed by java in 1995, due to some legal snags (problem). ο΅ The First version of Java began in 1991, and was written in 18 month at Sun Microsystem . In Fact, It was not even called JAVA in those daysβ¦ It was called Oak , and it was internally used at sun. ο΅ It is a βCase-Sensitiveβ language therefore it differentiate between upper case and lower case. ο΅ Java program file extension is β.javaβ
- 20. Java Features 1. Compiled and interpreted. 2. Platform Independent. 3. Portable 4. Multithreaded 5. Simple & Small 6. Object Oriented
- 21. Java Feature ο΅ Usually , a computer language is either compiled or interpreted but JAVA combines both these approaches thus making a java two stage system. ο΅ First stage Java Compiler translate java source code instruction to byte code. Byte codes are not a pure machine code instruction. ο΅ Second stage, Java interpreter generate machine code that can be directly executed by the machine that is running the Java Program.
- 22. Java Features ο΅ "Write once, run anywhere" (WORA), or sometimes "write once, run everywhere" (WORE), was a slogan created by Sun Microsystems to illustrate the cross-platform benefits of the Java language. ο΅ Platform independent language means once compiled you can execute the program on any platform (OS + Processor). ο΅ Java Program can be easily moved from one computer to another, any where any time ,changes in system resources and upgrade in operating system, processor will not force any change in java program.
- 23. Java Features ο΅ Java insure portability in two ways- ο΅ First Java Compiler generate byte code that can be implemented on any machine. ο΅ Secondly, the size of primitive data type are machine independent.
- 24. Java Features Multithreading means handling multiple task simultaneously. Java support multithreading program. This means that we can not wait for application to finish on task before beginning another task
- 25. Java Features Java is a small and simple language many feature of C and C++ are not part of java. For ex- Java does not use pointer, preprocessor, header file, goto statement many other. It eliminates operator overloading , multiple inheritance.
- 26. Java Features Java is true object oriented programming Language. Almost every thing in java is object . All program code and data reside within object and class. Java is not pure object oriented programming language because it support primitive data type such as int, byte, long, Boolean etc.
- 27. A) Console Program 1) Print hello Java 2) Add any two given number B) GUI Application 1) Foot Ball Match Score Board Demo Programs
- 28. Love to answer ur Questions or Query
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