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Vendor Name : Oracle
Exam Code : 1Z0-853
Exam Name : Java Standard Edition 5 Programmer Certified Professional
Questions and Answers : 361 Q & A
Updated On : January 23, 2019
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1Z0-853 exam Dumps Source : Java Standard Edition 5 Programmer Certified Professional

Test Code : 1Z0-853
Test Name : Java Standard Edition 5 Programmer Certified Professional
Vendor Name : Oracle
Q&A : 361 Real Questions

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Oracle Oracle Java Standard Edition

Java SE’s OpenJDK may well be headed to GitHub | killexams.com Real Questions and Pass4sure dumps

OpenJDK, the foundation for Oracle’s version of regular Java (Java SE), quickly may be hosted on GitHub, a circulation that may assist Java builders.

at the moment, repos for the OpenJDK project are on an Oracle-hosted Mercurial server. but assignment Skara, which is an ongoing effort to check new infrastructure for OpenJDK, could have the repos moving over to Git-based repos, together with perhaps GitHub or other host.

If building of average Java strikes to GitHub, builders would have at their disposal a lot of tools for automation. this sort of movement also may be valuable for Java builders working on projects anyway the JDK (Java  construction equipment), stated Georges Saab, chair of the OpenJDK governing board and vp of utility construction within the Java platform neighborhood at Oracle.

through the use of GitHub, builders would have access to widely wide-spread elements being used to enhance the JDK itself. Microsoft-owned GitHub’s management, in the meantime, is drawn to fitting a device used within the enterprise, he brought.

a choice to move would be made in the OpenJDK group, Saab referred to. It could occur in the timeframe of JDK 12, which is due in March 2019, or might be later on.

by way of moving OpenJDK to GitHub, OpenJDK can be in company with the commercial enterprise variant of Java. Oracle’s Java commercial enterprise version (EE) repos already had been hosted on GitHub. That mission has given that been succeeded through Jakarta EE at the Eclipse basis. nonetheless it, too, can also be found on GitHub.


Oracle Java commonplace edition Runtime atmosphere | killexams.com Real Questions and Pass4sure dumps

Oracle Java average edition Runtime ambiance (also known as JRE SE, Java SE or Java SE Runtime atmosphere) is a closed-supply and freely dispensed desktop know-how that offers a straightforward approach to run Java programs on any Linux-based mostly working gadget.

Invented by means of sun Microsystems

at the start invented by solar Microsystems for interactive tv, the software become in the past known as Java 2 Platform, regular version or J2SE. It changed into later obtained through the Oracle agency that now actively develops and keeps the source code.

it is known as Java SE (standard version) because the know-how is also distributed as a Micro edition (ME) and an commercial enterprise version (EE), which are available most effective for embedded methods/mobile gadgets and enterprise computing platforms respectively.

distributed as binary programs for all Linux distributions

The project makes it possible for clients to relish all the newest and best Java applied sciences from each the web and Java functions which are continually distributed as JAR files. it's allotted as binary archives that can also be deployed on any sixty four-bit or 32-bit GNU/Linux distribution.

besides the common binary info, Oracle also provides Linux clients with binary packages for all RPM-based mostly Linux distributions, including purple Hat business Linux, Fedora, openSUSE and OpenMandriva.

Supported on a lot of working programs

The JRE (Java Runtime environment) and JDK (Java construction equipment) platforms are platform-impartial and compatible with many open source and industrial operating methods, such as Linux, BSD, Solaris, Microsoft windows and Mac OS X, helping the sixty four-bit, 32-bit and SPARC architectures.

whereas the Java Runtime environment platform is used only for enjoying rich web content and Java courses, the Java construction package platform helps Java builders to create contemporary content material for sites or characteristic-rich functions that work on distinctive structures.

Java development package consists of Java Runtime atmosphere

it's additionally crucial to know that JDK (Java building equipment) incorporates the JRE (Java Runtime ambiance) platform, so that you don’t have to download them one by one in case your main intention is to develop in Java.

Java Runtime ambiance Java usual edition Oracle Java Oracle Java JRE SE


Oracle to charge business users of Java, Conducts Audits | killexams.com Real Questions and Pass4sure dumps

Oracle organization ORCL is reportedly tightening up on the application audit front, with appreciate to the utilization of Java standard edition (Java SE), a extremely accepted edition of Java quite simply accessible for down load from Oracle’s respectable website.

Reportedly, the company has recruited 20 Java specialists to be a part of the License management capabilities (LMS) branch, in order to cope with the application audits.

ORACLE CORP fee

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ORACLE CORP price | ORACLE CORP Quote

what's application Auditing?

software auditing is a practice carried out with the aid of many commercial enterprise application agencies to examine consumers, suspected of no longer deciding to buy the use of the application.

notably, foreign business Machines business enterprise IBM, SAP SE SAP and Microsoft MSFT are some organizations which have a neatly defined set of complex legal framework to confirm how a great deal a client should pay to use the software. The metrics used to derive the cost of the software customarily contains the variety of PCs working the application and the features of the utility getting used.

Why This flow?

Oracle suggested revenues of $9.07 billion within the 2nd-quarter of fiscal 2017, which missed the Zacks Consensus Estimate. specially, the on-premises application revenues declined three.7% to $6.13 billion. despite the fact, potent cloud revenues were capable of offset the decline and posted a 2.9% boom, when taken together with on-premises revenues.

besides the fact that children the company is making development in making its shoppers change to the cloud, it seems that it doesn’t are looking to go away any stone unturned to extend its shrinking software revenues.

despite the fact Java is free for use for private functions, not all models of the platform are free. chiefly, when it involves installing the platform on dissimilar windows-based PCs in an workplace, that requires the Microsoft home windows Installer commercial enterprise JRE to do the job, it now not remains a free software and is chargeable.

What this potential for Oracle?

We be aware that Oracle got solar Microsystems, the creator of Java in 2010. It has been six years and the company hasn’t been too aggressive about auditing the Java SE clients. 

With the enterprise tightening its stance on the usage of the platform, revenues within the coming quarters might effectively get a boost given the big base of purchasers running the platform.

With an estimated 3 billion gadgets operating on Java, the implications of the determination may well be large and should most likely increase the exact-line, going forward.

stock efficiency Overview

Shares of Oracle have underperformed the broader Zacks computing device utility trade on a year-to-date groundwork. while the industry generated a return of 10.4%, the inventory back 6.5%.

The underperformance of the stock could be attributed to the continuing transition from licensing to the cloud business mannequin that is preserving margins beneath pressure in the intervening time. moreover, litigation matters are additionally retaining the proportion expenses beneath check.

having said that, the continued momentum at SaaS and PaaS provides big increase opportunity. The introduction of Generation2 IaaS data centers are expected to increase Oracle’s aggressive prowess against Amazon web services and power market share, going ahead.

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Java Standard Edition 5 Programmer Certified Professional

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Sun Certified Java Programmer (SCJP) Certifications and Classes | killexams.com real questions and Pass4sure dumps

Fundamentals of the Java Programming Language, Java SE 6

This introductory course familiarizes students with the Java interface and programming language as well as the stages in a product life cycle. Students also learn how to design and test an application running on Java technology.

Java Programming Language, Java SE 6

Students in this class learn how to use the Java programming language to design graphical user interfaces (GUIs), execute applications with Java technology and set up network connections. Topics of instruction include flow control, array types, command-line arguments and threads. This course, along with the fundamentals of Java programming class, prepares students for OCP Java SE 6 Programmer certification exams.

Java SE 7 Programming

Students get tips for writing successful programs and working with Java's integrated development environment (IDE). Additional course topics include Java class design, inheritance, StringBuilder and StringBuffer, text parsing and I/O with Java, among many others. Students who complete the course will be prepared to use Java to design object-oriented applications. This is one of the courses designed to prepare individuals for OCP Java SE 7 Programmer certification.

Java SE 8 Programming

This training course familiarizes students with Java Standard Edition (SE) 8 Programming. Instruction covers fundamental language features and Application Programming Interfaces (API). Students will learn how to use Java SE 8 to create object-oriented applications, with course topics including specific object-oriented skill development, Lambda expressions, and the latest JDK updates.


OCEJWCD ( SCWCD 6) Web Component Developer Certification Exam | killexams.com real questions and Pass4sure dumps

Java EE 5 and Java EE 6 Web Component Developer CertificationThe web component developer certification for Java EE is hotter than other exams. Oracle offers two certifications for web component developers one for Java EE 5 and another one for Java EE 6.

Certifications offered to become JEE Web Component Developer
  • Oracle Certified Professional, Java EE 5 Web Component Developer. You need to complete 1Z0-858 Java Enterprise Edition 5 Web Component Developer Certified Professional Exam to achieve this certification. This exam tests Servlet and JSP knowldge based on Java EE 5 APIs.
  • Oracle Certified Expert, Java EE 6 Web Component Developer.  You need to complete 1Z0-899 OCE for Java EE 6 Web Component Developer Certified Expert Exam to achieve this certification. This exam tests Servlet and JSP knowldge based on Java EE 6 APIs.
  • Which Web Component Developer Certification I can choose?

    The OCEJWCD  certification provides knowledge required to develop Java EE 6 Enterprise applications using JSP and Servlet. This exam covers major improvements in Java EE 6 like web fragments, asynchronous servlet, annotations to create servlet or filter, etc.

  • Topic 1 - Introduction to Java Servlets
  • Topic 2 - Introduction to Java Server Pages
  • Topic 3 - Implementing an MVC Design
  • Topic 4 - The servlet’s environment
  • Topic 5 - Container facilities for servlets and JSPs
  • Topic 6 - More view facilities
  • Topic 7 - Developing JSP pages
  • Topic 8 - Developing JSP pages using custom tags
  • Topic 9 - More Controller facilities
  • Topic 10 - More options for the Model
  • Topic 11 - Asynchronous web applications
  • Topic 12 - Web application security
  • The OCPJWCD (or SCWCD) certification provides knowledge required to develop Java EE 5 Web applications using JSP and Servlets. You cannot get the advantage of testing your skills in new changes like web fragments, servlet annotations, etc.

  • Topic 1 - The Servlet Technology Model
  • Topic 2 - The Structure and Deployment of Web Applications
  • Topic 3 - The Web Container Model
  • Topic 4 - Session Management
  • Topic 5 - Web Application Security
  • Topic 6 - The JavaServer Pages (JSP) Technology Model
  • Topic 7 - Building JSP Pages Using the Expression Language (EL)
  • Topic 8 - Building JSP Pages Using Standard Actions
  • Topic 9 - Building JSP Pages Using Tag Libraries
  • Topic 10 - Building a Custom Tag Library
  • Topic 11 - Java EE Patterns
  • My recommendation would be to prepare for OCE for Java EE 6 Web Component exam to know the latest Java EE APIs and improvements.

    Why OCEJWCD isntead of OCPJWCD?

    The answer is simple “to know the latest technology” and most of your clients may upgrade from older versions to latest in few months or so. If you take Java EE 6 web component developer you no need to worry about upgrade exam until Java EE 7 , but if you take OCPJWCD you have to upgrade again to Java EE 6.

    Why Java EE 6 Web Component Certified?

    There are many benefits about being Java certified, you can validate your knowledge, improve your work efficiency and even you may get higher promotions with better salary.  Your project assignment experience may not be enough to learn all JSP and Servlet concepts. So certification adds more value to your profile.

    Exam Preparation Tips

    This Web Component Developer Exam is designed for having practical knowledge in Servlet and JSP Technologies.  Coding is the best way to learn programming skills, so you must work at least developing a small web application using JSP and servlets. Remember to use EL tags covered in exam objectives to understand better.  

    Certification Exam Study Materials
  • Oracle’s Java EE 6 Tutorial. Read and workout all examples mentioned here. Those who want to know what is servlet and JSP can start here.
  • OCEJWCD, Java SE 6 OCE Web Component Certification Training Lab . Software simulator for this certification that comes with study notes and practice questions. I recommend this product for those who have some knowledge in JSP and Servlets. 
  • BloomReach CMS: the API-first CMS of the future. Open-source & enterprise-grade. - As a Java developer, you will feel at home using Maven builds and your favorite IDE (e.g. Eclipse or IntelliJ) and continuous integration server (e.g. Jenkins). Manage your Java objects using Spring Framework, write your templates in JSP or Freemarker. Try for free.

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    Database Development: Comparing Python and Java ORM Performance | killexams.com real questions and Pass4sure dumps

    Stephen B. Morris draws a comparison between two approaches to ORM-centric database development. One is based on the Python SQLAlchemy ORM tools, and the other uses standard Java JPA. Which is better? The result of comparing a simple use case for both languages is quite surprising.

    Like this article? We recommend 

    In the late 1990s, it was commonplace to hear quite emotional arguments about the dangers of C programming versus other languages such as Pascal. The Pascal proponents pointed out the pitfalls in C: unchecked array access, pointer manipulation, complexity, and so on. The C supporters, on the other hand, regarded Pascal as a language for learning programming, rather than one for professional development.

    Then along came C++ and Java, and a lot of the old arguments were consigned to the history books. I think it's fair to say that Java has become the mainstream language of choice. But other languages such as C/C++ and so forth still have an important to role to play. For example, if you need to develop on small embedded devices, C is a good choice. For larger embedded systems, C++ is routinely used.

    One interesting development in the Java world has been the plethora of programming frameworks, including offerings such as Spring, Struts, and so on. Although very useful to the programmer, these frameworks haven't always been to everyone's taste. Indeed, getting up and running with a Spring-based tool chain is most decidedly not an easy undertaking. The same can be said for other frameworks such as Seam. This level of complexity is somewhat at variance with modern trends.

    As organizations seek to simplify their IT development, a move is underway toward more lightweight technologies. As part of this effort, some very large corporate and governmental organizations are moving away from the complex and framework-rich environments of Java, embracing languages such as Python. This trend can be seen all the way out to the front end, in the way JavaScript is sometimes being used aggressively as a platform for business logic.

    Despite all these changes in programming languages, relational databases still tend to sit at the epicenter of most systems—for large websites as well as even small mobile applications. A separate movement is headed toward NoSQL databases such as MongoDB. But, for the moment, relational technology still dominates. Getting database access from a chosen programming language is therefore a key part of the developer's toolkit. Not surprisingly, a range of options are available for programmatic database access. Let's see how Python and Java stack up.

    Python Versus Java

    In this article, I compare the object-relational mapping facilities from Python and Java. While preparing the code for this article, I was struck by the relative difficulty of setting up object-relational mapping (ORM) facilities in the two languages. For Python, the setup is pretty straightforward. Indeed, the online Python tutorials are of high quality, which also helps greatly in speeding up user adoption.

    On the other hand, the Java tutorials are somewhat more distributed across the Web, and getting up and running with Java ORM is much more difficult than with Python. I have a good deal of experience with Java, which helped me in getting the Java ORM working, but a beginner might not be able to get past the setup difficulties.

    However, having used and written about both languages, I should note that despite these occasional difficulties my preference would generally be to use Java. Why? Well, Java is a proven technology; out of the box, Java is structured, secure, strongly typed, and thread-safe.

    Anyway, that's enough grumbling. Let's see how to set up some ORM code in these two languages.

    Building a Python ORM Module

    Listing 1 has a bare-bones Python ORM module, based on the example in SQLAlchemy documentation. This Python module uses a class definition, which contains the database mapping.

    Listing 1—A complete Python ORM module. import sqlalchemy from sqlalchemy import create_engine from sqlalchemy.ext.declarative import declarative_base from sqlalchemy import Column, Integer, String from sqlalchemy.orm import sessionmaker import time if __name__ == '__main__': sqlalchemy.__version__ engine = create_engine('mysql://userName:password@localhost', echo=False) engine.execute('USE sqlAlchemyJavaORM') Base = declarative_base() class User(Base): __tablename__ = 'DBPythonUsers' id = Column(Integer, primary_key=True, nullable = False) name = Column(String(30), nullable = False) fullname = Column(String(30), nullable = False) password = Column(String(20), nullable = False) def greeting(self): return 'Hello world from class name ' + self.__class__.__name__ def __repr__(self): return "<User(name='%s', fullname='%s', password='%s')>" % ( self.name, self.fullname, self.password) x = User() print x.greeting() startTime = time.time() for i in range(0, 100000): Base.metadata.create_all(engine) Session = sessionmaker(bind=engine) session = Session() ed_user = User(name='ed' + str(i), fullname='Ed Jones', password='edspassword') # Now we can talk to the database session.add(ed_user) session.commit() print time.time() - startTime, 'seconds'

    Let's break down Listing 1 into its constituent parts:

  • Create an engine with which to communicate with the database:
  • engine = create_engine('mysql://userName:password@localhost', echo=False)

    I used MySQL Server, but to get started quickly you can use the in-memory SQLite. To use the line above, substitute your login name and password in place of userName and password.

    The class User provides the main ORM mapping. Notice the multiple uses of Column; each of them maps to an actual database column.

  • Next up, the line x = User() creates an instance of the above class.
  • Then I call a test method on the class called x.greeting().
  • Next, the schema is created with Base.metadata.create_all(engine).
  • Using a session instance, I insert data into the database.
  • The last step is to roughly record the time taken to execute the database code.
  • That's the overall view. Now let's dig a little deeper into this interesting Python ORM technology. The Python code used here is based on the SQLAlchemy tutorial, so I won't go into too much detail beyond the main points above.

    One aspect of Listing 1 that requires some explanation is the way the code interacts with the database engine. That is, I allow the Python code to create the table as follows:

    Base.metadata.create_all(engine)

    Listing 2 illustrates the MySQL database table created by the Python module.

    Listing 2—The newly created database table. +----------+-------------+------+-----+---------+----------------+ | Field | Type | Null | Key | Default | Extra | +----------+-------------+------+-----+---------+----------------+ | id | int(11) | NO | PRI | NULL | auto_increment | | name | varchar(30) | NO | | NULL | | | fullname | varchar(30) | NO | | NULL | | | password | varchar(20) | NO | | NULL | | +----------+-------------+------+-----+---------+----------------+

    A careful comparison between Listings 1 and 2 illustrates the power of ORM: One Python class and module does all this work. But remember that this power brings a lot of responsibility! Notice also the auto-incrementing primary key in Listing 2. This is a very convenient and standard MySQL database column type, where the id value is automatically incremented each time a row is inserted into the table.

    The last noteworthy section in Listing 1 is the data insertion loop. I use a loop to insert 100,000 rows into the database table.

    The Python code is done. Now how do we go about doing something similar in Java?

    We've seen the approach to Python ORM. Let's look at how an equivalent Java solution might work. Unfortunately, as I mentioned earlier, getting set up with a Java ORM project is not so trivial an undertaking. Interested readers can look at some of my earlier JPA articles. For this specific case, look at this EclipseLink example for some guidance.

    Listing 3 illustrates a basic Java entity class JavaORMClass. Notice the heavy use of Java annotations, such as @Entity, @Table, @Column, and so on. These annotations provide the mapping between the class data members and the underlying database table. Just as in the Python case, Java code can create the database schema.

    Listing 3—A Java JPA class. @Entity @Table(name = "DBJavaUsers") public class JavaORMClass { @Id @GeneratedValue @Column(name = "IDENT_PARAMS_ID") private Long id; @Column(name = "name") private String name; @Column(name = "fullname") private String fullName; @Column(name = "password") private String password; public JavaORMClass() { } public JavaORMClass(String name, String fullName, String password) { super(); this.name = name; this.fullName = fullName; this.password = password; } public Long getId() { return id; } public String getName() { return name; } public void setName(String name) { this.name = name; } public String getFullName() { return fullName; } public void setFullName(String fullName) { this.fullName = fullName; } public String getPassword() { return password; } public void setPassword(String password) { this.password = password; }

    Listing 4 illustrates a simple Java class to write to the database. This Java JPA code is all pretty standard stuff, and the bulk of the code in Listing 3 is automatically generated by Eclipse. Notice the use of a transaction in Listing 4 and the call to persist().

    Listing 4—A Java client class. public void saveJavaOrm(JavaORMClass javaORMClassObject) { try { // Start EntityManagerFactory EntityManagerFactory emf = Persistence .createEntityManagerFactory("helloworld"); // First unit of work EntityManager entityManager = emf.createEntityManager(); EntityTransaction entityTransaction = entityManager .getTransaction(); entityTransaction.begin(); entityManager.persist(javaORMClassObject); entityTransaction.commit(); entityManager.close(); emf.close(); } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); } }

    Finally, Listing 5 illustrates invocation of the client class to persist the data to the database.

    Listing 5—A Java client class to persist the required data. ClientCreate clientCreate = new ClientCreate(); long startTime = System.nanoTime(); for (int i = 0; i < 100000; i++) { JavaORMClass javaORMClassObject = new JavaORMClass( "ed" + i, "Ed Jones" + i, "password"); clientCreate.saveJavaOrm(map, javaORMClassObject); }

    In Listing 5, I use a for loop to add the JavaORMClass objects to the database.

    Okay, we've seen how to produce the code. How about the execution times? Listing 6 illustrates the Python and Java execution times in seconds.

    Listing 6—Execution times. Python ------> Execution time: 6332 Java --------> Execution time: 7353

    Python looks a good bit faster! Obviously, the use case here is a little extreme—inserting 100,000 rows isn't going to happen every day. But it shows that Python is considered a lightweight language for good reasons.



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