Our training materials can guarantee you 100% to pass Oracle certification 1Z0-804 Learning Cram exam, if not, we will give you a full refund and exam practice questions and answers will be updated quickly, but this is almost impossible to happen. Omgzlook can help you pass Oracle certification 1Z0-804 Learning Cram exam and can also help you in the future about your work. Although there are many ways to help you achieve your purpose, selecting Omgzlook is your wisest choice. Various study forms are good for boosting learning interests. So our company has taken all customers’ requirements into account. If you purchase the training materials we provide, you can pass Oracle certification 1Z0-804 Learning Cram exam successfully.
Java and Middleware 1Z0-804 So Omgzlook a website worthy of your trust.
Java and Middleware 1Z0-804 Learning Cram - Java SE 7 Programmer II Exam The high pass rate of our study materials means that our products are very effective and useful for all people to pass their exam and get the related certification. Do not spend too much time and money, as long as you have Omgzlook learning materials you will easily pass the exam. In order to help you more Omgzlook the Oracle 1Z0-804 Valid Test Bootcamp Materials exam eliminate tension of the candidates on the Internet.
Pdf version- it is legible to read and remember, and support customers’ printing request, so you can have a print and practice in papers. Software version-It support simulation test system, and times of setup has no restriction. Remember this version support Windows system users only.
Oracle 1Z0-804 Learning Cram - We guarantee you 100% to pass the exam.
We all well know the status of Oracle certification 1Z0-804 Learning Cram exams in the IT area is a pivotal position, but the key question is to be able to get Oracle 1Z0-804 Learning Cram certification is not very simple. We know very clearly about the lack of high-quality and high accuracy exam materials online. Exam practice questions and answers Omgzlook provide for all people to participate in the IT industry certification exam supply all the necessary information. Besides, it can all the time provide what you want. Buying all our information can guarantee you to pass your first Oracle certification 1Z0-804 Learning Cram exam.
Here, I have to recommend Omgzlook's Oracle 1Z0-804 Learning Cram exam training materials. The purchase rate and favorable reception of this material is highest on the internet.
1Z0-804 PDF DEMO:
QUESTION NO: 1
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: 2
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: 3
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: 4
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: 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
Omgzlook can not only provide all the information related to the Oracle certification Cisco 300-610 exam for the candidates, but also provide a good learning opportunity for them. CIW 1D0-671 - Omgzlook will provide you with the best training materials, and make you pass the exam and get the certification. Simulation test software of Oracle USGBC LEED-AP-ND exam is developed by Omgzlook's research of previous real exams. HP HPE6-A73 test is one of the most important exams and the certificate will bring you benefits. Our training program can effectively help you have a good preparation for Oracle certification Hitachi HQT-4420 exam.
Updated: May 28, 2022