The client can visit the page of our product on the website. So the client can understand our 1Z0-804 Material exam materials well and decide whether to buy our product or not at their wishes. The client can see the forms of the answers and the titles. Omgzlook is a website to meet the needs of many customers. Some people who used our simulation test software to pass the IT certification exam to become a Omgzlook repeat customers. Therefore, our affordable 1Z0-804 Material study guide will definitely be gainful opportunity.
Java and Middleware 1Z0-804 It is absolutely trustworthy website.
So you totally can control the 1Z0-804 - Java SE 7 Programmer II Exam Material study materials flexibly. Many times getting a right method is important and more efficient than spending too much time and money in vain. Our Omgzlook team devote themselves to studying the best methods to help you pass 1Z0-804 Certification Cost exam certification.
Secondly, the price of our 1Z0-804 Material learning guide is quite favourable than the other websites'. 1Z0-804 Material study guide can bring you more than you wanted. After you have used our products, you will certainly have your own experience.
Oracle 1Z0-804 Material - Or you can choose to free update your exam dumps.
With the development of society, the 1Z0-804 Material certificate in our career field becomes a necessity for developing the abilities. Passing the 1Z0-804 Material and obtaining the certificate may be the fastest and most direct way to change your position and achieve your goal. And we are just right here to give you help. Being considered the most authentic brand in this career, our professional experts are making unremitting efforts to provide our customers the latest and valid {CertName} exam simulation.
You will find some exam techniques about how to pass 1Z0-804 Material exam from the exam materials and question-answer analysis provided by our Omgzlook. Besides, to make you be rest assured of our dumps, we provide 1Z0-804 Material exam demo for you to free download.
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 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: 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
But we can help all of these candidates on EMC D-PEXE-IN-A-00 study questions. Continuous update of the exam questions, and professional analysis from our professional team have become the key for most candidates to pass Cisco 200-301-KR exam. So let our Microsoft MB-260 practice guide to be your learning partner in the course of preparing for the exam, it will be a wise choice for you to choose our Microsoft MB-260 study dumps. Oracle 1z0-1047-24 - To pass this exam also needs a lot of preparation. After nearly ten years' efforts, now our company have become the topnotch one in the field, therefore, if you want to pass the ATLASSIAN ACP-120 exam as well as getting the related certification at a great ease, I strongly believe that the ATLASSIAN ACP-120 study materials compiled by our company is your solid choice.
Updated: May 28, 2022