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Java Programmer's Certification Sun Certified Java Programmer (SCJP)
Course: SL-275 Java language programming
This course enables students to learn how to use standard
what the other person has to offer, which is helpful in finding a job and may get a higher salary. We know that Indian programmers in the United States a lot, in India, the majority of the Java training are individuals, they are very important to the Java certification, accounting for more than 90% of the number of students.
Java
Analysis of the Java2 Programmer examination (SCJP) -- Linux general technology-Linux programming and kernel information. The following is a detailed description. Preface
Whether you are a newbie or an expert in programming, you will be amazed by the Infinite Charm of Sun's Java. Java brings you more than just the adv
the Web Start and applet deployment modes.
Given an architectural system specification, select appropriate locations for implementation of specified security feature s, and select suitable technologies for implementation of those features
Identify and classify potential threats to a system and describe how a given architecture would address the threats.
Describe the commonly used declarative and programmatic methods used to secure applications built on the
Configure a JMS message-driven bean
Using Timer servicesobjectives
Describe Timer Services
Create a timer notification callback
Process a timer notification callback Manage timer objects
Implementing Interceptor Classes and Methods
Describe Interceptors and Interceptor classes
Create a business interceptor method in the enterprise Bean class
Create an Interceptor class
Associate multiple business Interceptor methods with an enterprise bean
the benefits and drawbacks of using a browser to access asynchronous, lightweight processes on the server.
Design Patterns
Demonstrate knowledge of Java EE design Patterns Including:service Starter, Singleton, Bean Locator, Resource Binder, Dep Endency injection, Payload Extractor, Context Holder, and Thread Tracker.
Select an appropriate pattern for a given application challenge from the Following:facade, strategy, Observer, Compos
Identify the best suited standard validator and implement it in a given JSF application
Create, configure, and use custom validators
Describe the usage of bean validation
Section 4:event Handling
Use CDI Named beans in a JSF application to handle action and Valuechange events
Create and implement listeners to handle events
Develop JSF application that handle life cycle events
Implement Asynchronous events using AJAX
Section 5:data table and Composite c
Full text from: https://help.ubuntu.com/community/Java
Oracle (Sun) Java 6
Warning: Oracle Java 6 had reached its end of life in November 2012. there is at least one severe known vulnerability in this version, and since
has the test server up as a.
Clearly, the best way to go is embedded HTTP server, which would allow us to provide specific responses Tailore D for each unit test.
As luck would have it, it turns out of that Sun's Java 6 implementation comes with a lightweight HTTP server APIs built in. Read on as I demonstrate the basic use of Sun's HTTP server classes to write a functional test.
HTTP Server in a box
The h
Install JDK 6 first
Sudo apt-Get install sun-java6-jdk
Then you need to set the default JavaProgramSudo Update-alternatives -- config JavaEnter the corresponding options as prompted, and set them to JDK 6.
The following settingsSudo Vim/etc/environment
Add the following two lines:Classpath =/usr/lib/JVM/Java
6 tips for a Java programmer to learnKnowledge changes the fate of Java programmers, the technology is constantly updated, only in time to recharge, can not be eliminated by the market. Beijing Java training institutions to share 6
still refers to the heap in the memory of the entity objects, so the heap in memory of the entity objects are not purged by the garbage collector * The 6.main method prints the value of the D.x, at which point D points to the referenced variable x of the modified object in the heap memory, and the resulting output is 4 rather than 9. * The 7.main method ends, out of the stack, and if that object in the heap memory is not called, it will be reclaimed
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