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Scjp 5.0 – Carving a Well Qualified Java Tiger Programmer

Monday, January 9th, 2012

SCJP 5.0 – Carving a well qualified Java Tiger Programmer

Sun Microsystems offers many certifications starting from programmer level to architect level. The latest version of programmer (SCJP) exam is SCJP 5.0 – Sun Certified Programmer for the Java 2 Platform, Standard Edition 5.0 (CX-310-055). Sun started calling SCJP 5.0 instead SCJP 1.5 from this new version.

Achieving this certification provides clear evidence that a programmer understands the basic syntax and structure of the Java programming language based on new syntax introduced in SCJP 5.0. The certified programmer can create Java technology applications that run on server and desktop systems using J2SE 5.0 ( Java Tiger). Java Tiger is the another name of J2SE 5.0.

NOTE: The external version number of this release is 5.0 and its internal version number is 1.5.0.

What is new in Java Tiger ?

Changes include generic types, metadata, autoboxing, an enhanced for loop, enumerated types, static import, C style formatted input/output, variable arguments, concurrency utilities, and simpler RMI interface generation.

Wow ! Thanks to Sun Microsystems for providing such a valuable features for Java Programmers.

So, if you decided to take Sun Java Programmer certification (SCJP) go ahead with SCJP 5.0 and be a Java Tiger Certified Programmer and enjoy the benefits of new features.

Changes in Exam Objectives from SCJP 1.4 to SCJP 5.0

SCJP 1.4

SCJP 5.0

Section 1: Declarations and Access Control

Section 2: Flow control, Assertions, and Exception Handling

Section 3: Garbage Collection

Section 4: Language Fundamentals

Section 5: Operators and Assignments

Section 6: Overloading, Overriding, Runtime Type and Object Orientation

Section 7: Threads

Section 8: Fundamental Classes in the java.lang Package

Section 9: The Collections Framework

Section 1: Declarations, Initialization and Scoping

Section 2: Flow Control

Section 3: API Contents

Section 4: Concurrency

Section 5: OO Concepts

Section 6: Collections / Generics

Section 7: Fundamentals

Is SCJP 5.0 easy compared to SCJP 1.4 as it has limited number of sections? No, most of the concepts are new in SCJP 5.0. Some of them are not related with SCJP 1.4.

SCJP 5.0 Exam Details

Delivered at: Authorized Worldwide Prometric Testing Centers

Prerequisites: None

Other exams/assignments required for this certification: None

Exam type: Multiple choice and drag and drop

Number of questions: 72

Pass score: 59% (43 of 72 questions)

Time limit: 175 minutes

After completion of SCJP 5.0 exam you are familiar with Java Tiger concepts like generic types, metadata, auto boxing, an enhanced for loop, enumerated types, static import, variable arguments, etc.

How long I need to prepare for this exam?

The answer is it depends on your current knowledge in Java programming and OO Concepts. You may get an approximate estimation from EPractize Labs SCJP 5.0 Preparation Time Calculator.

How to start? Where to start?

First go to Sun’s website and understand the exam objectives. http://www.sun.com/training/catalog/courses/CX-310-055.xml

Plan for your preparation. If needed calculate an estimation from EPractize Labs SCJP 5.0 Preparation Time Calculator.

Identify your weak areas based on the exam objectives. Set more focus on those topics.

Study and workout the program examples.

Practice with mock exams and see where you are. Continue your practice till you achieve your goal.

Achieve your SCJP 5.0 certificate and share your success WITH YOUR FRIENDS AND COLLEAGUES!

Recommended SCJP 5.0 Exam Preparation Kit

Use SCJP 5.0 Exam EPractize Labs – Personal Edition for empowering your preparation by PPA-1(Plan, Practize, Achieve) methodology.

SCJP 5.0 Certification Benefits

For the Individual

Clear evidence that you are a Java Tiger programmer.

The certification empowers in driving Java Programming based on J2SE 5.0.

SCJP 5.0 certified programmers can easily design and develop the code based on J2SE 5.0.

Being a SCJP 5.0 certified programmer helps you to improve your career potential, gain more respect, boost up your job security and opportunities.

With SCJP 5.0 certified programmer, you become more competitive in the job market.

For the organization

Enables management to distinguish SCJP 5.0 certified programmer as Java professionals who can develop quality code efficiently and effectively.

Helps in deciding the best development APIs or Java Components based on latest J2SE APIs.

More confidence to work on Java Code technical decisions with business partners.

Enables project team to get best coding practices and guidance from a qualified Java Programmer.

Good Luck !

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Java and Its Advantages

Thursday, December 22nd, 2011

JAVA is an object oriented programming language and it was intended to serve as a new way to manage software complexity. Java refers to a number of computer software products and specifications from Sun Microsystems that together provide a system for developing application software and deploying it in a cross-platform environment. Java is used in a variety of computing platforms from embedded devices and mobile phones on the low end, to enterprise servers and supercomputers on the high end. Java is nearly everywhere in mobile phones, Web servers and enterprise applications, and while less common on desktop computers; Java applets are often used to provide improved functionality while browsing the World Wide Web.

Some advantages of JAVA:

• It is an open source, so users do not have to struggle with heavy license fees each year

• Platform independent

• Java API’s can easily be accessed by developers

• Java perform supports garbage collection, so memory management is automatic

• Java always allocates objects on the stack

• Java embraced the concept of exception specifications

• Multi-platform support language and support for web-services

• Using JAVA we can develop dynamic web applications

• It allows you to create modular programs and reusable codes

Another advantage of JAVA is that, ones the program is written in java we can run it anywhere means that application developed through Java is platform independent. JAVA based enterprise applications perform well because stable JAVA standards help developers to create multilevel applications with a component based approach.

JAVA programming enables secure and high performance software development on multiple platforms. Many companies in India have well-qualified software engineers having expertise in Java, Java Script, J2SE, JSP, and J2ME, JAVA Programming Services help your businesses to do better. They provide variety of Java development services including project solutions.

Java – Programmimg Language

Sunday, December 11th, 2011

Java is an object oriented and structured programming language, designed by Sun Microsystems in the year 1991.Java is a third generation programming language. It has an in built application interface which has the ability to handle the graphics and user interfaces that creates the applets or applications.

The very advantage of java is its “portability”, the programmer can write the program and compile in the same kind of environment as it is written and after that it can be run anywhere.

Java relates to both C and C++, it uses the syntax of C and the object oriented concepts from c++ and this makes Java appealing. When a source code is given as the input, the output from java compiler is the “bytecode”. Bytecode contains set of instructions which will be executed by Java Virtual machine (JVM). In a more simple way, I can say JVM interprets the bytecode and this is the reason that java can be run anywhere. Applets are the programs which are embedded in to web page and can be executed where as the applications are directly executed by JVM.

It is not always possible to compile the complete program at the same time, so java uses just-in-time compiler to compile a set of bytecodes in real time for execution and the remaining codes will just be interpreted and thus makes the execution of Java program faster. The two main building blocks of java programming are the classes and objects. Objects are the instance of class and class is a template for creating objects.

Unlike in c/c++ you need not manually allocate/de allocate dynamic memory, java itself does this and also it has garbage collection for the unused objects. Java program handles the run time errors too. Java supports multithreaded programming.

To summarize Java is easy to use, write and to compile, it is robust, platform –independent, distributed, interpreted and secure.

Using the Right Programming Language That Suits You

Thursday, December 1st, 2011

One of the languages developed on top of the Java Virtual Machine is the Jython, and this project began in 1997. the development of the language has been passed on to several lead developers until Sun Microsystems took over and worked full time on it. Jython 2.2 which is the latest release matches up to the CPython 2.2 release but later, its developers shifted to a new direction for its implementation using ASM and ANTLR to hasten development time. With the interactive interpreter found inside the jar file, you can discover the capabilities of Jython, most specially in executing files.

When using the Open Source Software for commercial gain minus the tricks and preserving the community and openness aspects, there are two things to consider: that payment is collected proportionate to the advantage gained from the software; and that active user in the community can have the assurance that their license charges is compensated in relation to their code contributions. This means a user is allowed to have open access to the source code, allowed to redistribute it, and free rights to make changes to the code; being able to initiate some limited charges supported by certain restricted types of program execution, and agreeing to cash or in kind payments.

Open source software and open source documents are fast gaining popularity. It is firmly gaining a growing market share as well as getting the corporate and the public’s interests. It is also quickly entering mainstream, being in the technology world starting 1998. However its concept began alongside the birth of computing. Frequently Asked Questions list or FAQs were the first documents to be known as having used the open source software but beside this information little is known about this list. Open source needs good documentation to spread out to new users and three forms are currently in use: ReadMe files, Manual pages, and HowTo documents.

There are two types of software being used: the conventional closed source from software vendors; and the open source, with Linux and MySQL as examples. Both software have managed to be on the same footing and is in existence probably almost at the same time, around the start of the computing world. Recently, customers are expressing disappointment over the closed source protocol software but are not inclined to be completely dependent on the open source programs. They are looking for warranties, agreements and vendor assurance that they have qualified and committed developers. Their areas of concern with open source deal with collaborative source software and license and feedback from it.

Web Services for Remote Portal provides a pattern for the portal application to allocate portlets between portals. It is the facility to produce an interface to useful function that can be used throughout the enterprise with little or no changes to existing code. Almost all of the newest versions of commercial and open space portal products support it. The key procedure is similar to earlier web services – producer provides WSDL that directs the consumer on how to create a SOAP request. SOAP responses are obtained at the presentation level and the consumer then decides where to display them. Being simple, it provides whatever the enterprise needs to reuse portals across the enterprise.

The Most Significant Features of Java Language

Saturday, November 5th, 2011

Java is an object-oriented programming language developed by Sun Microsystems in 1990s. Since then, Java has gained enormous popularity as a computer language. Java was chosen as the programming language for network computers. It is a universal front end for enterprise database. Sun Microsystems states that, “Java is a simple, object-oriented, distributed, secure, architecture, robust, multi threaded and dynamic language. The program can be written once, and run anywhere”. One of the most significant advantages of Java is that, it has the ability to move easily from one computer to another. It also has the ability to run the same program on many different operating systems. With such exemplary benefits, Java is a hot favorite among techies and software professionals.

Java has significant advantages compared to other languages. Java language is easy to use and therefore easy to write, compile, debug. Moreover, it is easier to learn when compared to other programming languages. Since Java is object-oriented, it allows you to create modular programs and reusable codes. Platform-independent, Java is a robust language. The language lays more importance on early checking for errors, since Java compilers can detect many problems during the time of execution of an application. Java is multithreaded, since it has the capability for a program to perform several tasks simultaneously within the same program. Java Development has gained a significant position in the industry with programmers and developers finding it easier and more effective than many other languages.

Java applications are designed to be compiled and then interpreted at runtime, unlike the conventional programming languages, which can either compile source code to native code or interpret the source code. The language itself has borrowed the syntax from C and C++. Java considers security as a part of its design. The Java language, its compiler, interpreter, and runtime environment are all developed with security. Writing network programs in Java is similar to sending and receiving data to and from a file.

The Java programming language was developed and re-designed for use on the Internet. In the internet domain, Java’s popularity has increased tremendously, especially on the server side of the Internet. Nowadays, there are a large number of Java experts who strive for the enhancement and improvement of Java development. For beginners who are interested in learning Java, the numerous Java tutorials available online are good to start with. Java tutorials and Java tips are the best resources for learning and improvising in Java.

Java Development experts are trying to enhance their programming skills for writing secure Java applications. In order to write a secure code in Java you need to be aware of various things such as data handling techniques, user authentication rules, access controls etc. JavaScript is a scripting language which shares a similar name and has the same syntax, but is in no way related to the core Java language. Few steps are crucial for a secure Java application development. They are logical software design, proper validation, well planed application development and standardized security test. Java has become the language of choice world over for providing effective and sure-fire Internet solutions.