If you want to be one of them, please allow me to recommend the 1Z0-804 Study Materials learning questions from our company to you, the superb quality of 1Z0-804 Study Materials exam braindumps we've developed for has successfully helped thousands of candidates to realize their dreams. And our 1Z0-804 Study Materials study materials have helped so many customers pass the exam. Obtaining the 1Z0-804 Study Materials certification is not an easy task. Java SE 7 Programmer II Exam study questions provide free trial service for consumers. If you are interested in 1Z0-804 Study Materials exam material, you only need to enter our official website, and you can immediately download and experience our trial PDF file for free. We believe that if you decide to buy the 1Z0-804 Study Materials study materials from our company, you will pass your exam and get the certification in a more relaxed way than other people.
Java and Middleware 1Z0-804 Selecting Omgzlook means choosing a success
Java and Middleware 1Z0-804 Study Materials - Java SE 7 Programmer II Exam You can get the information you want to know through the trial version. You can free download part of Omgzlook's practice questions and answers about Oracle certification 1Z0-804 Related Certifications exam online, as an attempt to test our quality. As long as you choose to purchase Omgzlook's products, we will do our best to help you pass Oracle certification 1Z0-804 Related Certifications exam disposably.
As we all know, 1Z0-804 Study Materials certificates are an essential part of one’s resume, which can make your resume more prominent than others, making it easier for you to get the job you want. For example, the social acceptance of 1Z0-804 Study Materials certification now is higher and higher. If you also want to get this certificate to increase your job opportunities, please take a few minutes to see our 1Z0-804 Study Materials training materials.
Oracle 1Z0-804 Study Materials - They all have high authority in the IT area.
Are you facing challenges in your career? Would you like to better prove yourself to others by improving your ability? Would you like to have more opportunities to get promoted? Hurry to sign up for IT certification exam and get the IT certificate. Oracle certification exam is one of the important exams. If you obtain Oracle certificate, you will get a great help. Because Oracle 1Z0-804 Study Materials certification test is a very important exam, you can begin with passing 1Z0-804 Study Materials test. Are you wandering how to pass rapidly 1Z0-804 Study Materials certification exam? Omgzlook certification training dumps can help you to achieve your goals.
Now many IT professionals agree that Oracle certification 1Z0-804 Study Materials exam certificate is a stepping stone to the peak of the IT industry. Oracle certification 1Z0-804 Study Materials exam is an exam concerned by lots of IT professionals.
1Z0-804 PDF DEMO:
QUESTION NO: 1
Given the fragment: If thread a and thread b are running, but not completing, which two could be occurring?
A.livelock
B.deadlock
C.starvation
D.loose coupling
E.cohesion
Answer: A,B
Explanation:
A: A thread often acts in response to the action of another thread. If the other thread's action is also a response to the action of another thread, then livelock may result. A thread often acts in response to the action of another thread. If the other thread's action is also a response to the action of another thread, then livelock may result.
B: Deadlock describes a situation where two or more threads are blocked forever, waiting for each other.
QUESTION NO: 2
Which two properly implement a Singleton pattern?
A.class Singleton {
private static Singleton instance;
private Singleton () {}
public static synchronized Singleton getInstance() {
if (instance == null) {
instance = new Singleton ();
}
return instance;
}
}
B.class Singleton {
private static Singleton instance = new Singleton();
protected Singleton () {}
public static Singleton getInstance () {
return instance;
}
}
C.class Singleton {
Singleton () {}
private static class SingletonHolder {
private static final Singleton INSTANCE = new Singleton ();
}
public static Singleton getInstance () {
return SingletonHolder.INSTANCE; } }
D.enum Singleton {
INSTANCE;
}
Answer: A,D
Explanation:
A: Here the method for getting the reference to the SingleTon object is correct.
B: The constructor should be private
C: The constructor should be private
Note: Java has several design patterns Singleton Pattern being the most commonly used. Java
Singleton pattern belongs to the family of design patterns, that govern the instantiation process. This design pattern proposes that at any time there can only be one instance of a singleton (object) created by the JVM.
The class's default constructor is made private, which prevents the direct instantiation of the object by others (Other Classes). A static modifier is applied to the instance method that returns the object as it then makes this method a class level method that can be accessed without creating an object.
OPTION A == SHOW THE LAZY initialization WITHOUT DOUBLE CHECKED LOCKING TECHNIQUE ,BUT
ITS CORRECT OPTION D == Serialzation and thraead-safety guaranteed and with couple of line of code enum Singleton pattern is best way to create Singleton in Java 5 world.
AND THERE ARE 5 WAY TO CREATE SINGLETON CLASS IN JAVA 1>>LAZY LOADING (initialization)
USING SYCHRONIZATION 2>>CLASS LOADING (initialization) USING private static final Singleton instance = new
Singleton(); 3>>USING ENUM 4>>USING STATIC NESTED CLASS
5>>USING STATIC BLOCK
AND MAKE CONSTRUCTOR PRIVATE IN ALL 5 WAY.
QUESTION NO: 3
Given the code fragment:
What is the result?
A.Null B D
B.Null B null D
C.B D
D.D
E.An exception is thrown at runtime
Answer: C
QUESTION NO: 4
Given:
Which two are true?
A.A runtime exception is thrown on line 9.
B.No output is produced.
C.Greeting is printed once.
D.Greeting is printed twice.
E.No new threads of execution are started within the main method.
F.One new thread of execution is started within the main method.
G.Two new threads of execution are started within the main method.
Answer: C,E
Explanation:
Thread t2 is executed. Execution of T2 starts executionen of t1. Greeting is printed during the execution of t1.
QUESTION NO: 5
Given the code fragment:
What is the result?
A.getName (0): C:\
subpath (0, 2): C:\education\report.txt
B.getName(0): C:\ subpth(0, 2): C:\education
C.getName(0): education subpath (0, 2): education\institute
D.getName(0): education subpath(0, 2): education\institute\student
E.getName(0): report.txt subpath(0, 2): insritute\student
Answer: C
Explanation:
Example:
Path path = Paths.get("C:\\home\\joe\\foo");
getName(0)
-> home
subpath(0,2)
Reference: The Java Tutorial, Path Operations
Recently, Lpi 300-300 exam certification, attaching more attention from more and more people in IT industry, has become an important standard to balance someone's IT capability. IIA IIA-CHAL-QISA - A lot of candidates who choose to use the Omgzlook's product have passed IT certification exams for only one time. To resolve your doubts, we assure you that if you regrettably fail the APICS CSCP exam, we will full refund all the cost you buy our study materials. Omgzlook is a website for Oracle certification Splunk SPLK-2003 exam to provide a short-term effective training. Our APM APM-PFQ dumps torrent files will be the best resources for your real test.
Updated: May 28, 2022