Accompanying with our 1Z0-804 Reliable Exam Objectives exam dumps, we educate our candidates with less complicated Q&A but more essential information, which in a way makes you acquire more knowledge and enhance your self-cultivation. And our 1Z0-804 Reliable Exam Objectives exam dumps also add vivid examples and accurate charts to stimulate those exceptional cases you may be confronted with. You can rely on our 1Z0-804 Reliable Exam Objectives test questions, and we’ll do the utmost to help you succeed. It will help you to accelerate your knowledge and improve your professional ability by using our 1Z0-804 Reliable Exam Objectives vce dumps. We are so proud of helping our candidates go through 1Z0-804 Reliable Exam Objectives real exam in their first attempt quickly. Secondly, you can free download the demos to check the quality, and you will be surprised to find we have a high pass rate as 98% to 100%.
Java and Middleware 1Z0-804 This is really amazing.
Java and Middleware 1Z0-804 Reliable Exam Objectives - Java SE 7 Programmer II Exam And we will let you down. Omgzlook is a great resource site. It includes Oracle 1Z0-804 Reliable Exam Bootcamp Exam Materials, study materials and technical materials, as well as exam training and detailed explanation and answers.
To understand our 1Z0-804 Reliable Exam Objectives learning questions in detail, just come and try! Our 1Z0-804 Reliable Exam Objectives real quiz boosts 3 versions: the PDF, the Softwate and the APP online which will satisfy our customers by their varied functions to make you learn comprehensively and efficiently. The learning of our 1Z0-804 Reliable Exam Objectives study materials costs you little time and energy and we update them frequently.
Oracle 1Z0-804 Reliable Exam Objectives - In order to enhance your own, do it quickly.
Many people want to be the competent people which can excel in the job in some area and be skillful in applying the knowledge to the practical working in some industry. But the thing is not so easy for them they need many efforts to achieve their goals. Passing the test 1Z0-804 Reliable Exam Objectives certification can make them become that kind of people and if you are one of them buying our 1Z0-804 Reliable Exam Objectives study materials will help you pass the 1Z0-804 Reliable Exam Objectives test smoothly with few efforts needed.
Don't you believe in it? Omgzlook real questions and answers are the materials that it can help you get high marks and pass the certification exam. Please try it.
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 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
QUESTION NO: 5
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.
Saving the precious time users already so, also makes the Dell D-PWF-DY-A-00 quiz torrent look more rich, powerful strengthened the practicability of the products, to meet the needs of more users, to make the Dell D-PWF-DY-A-00 test prep stand out in many similar products. Omgzlook Oracle SAP C-S4CS-2408 dumps are validated by many more candidates, which can guarantee a high success rate. Passing the CIW 1D0-622 and obtaining the certificate may be the fastest and most direct way to change your position and achieve your goal. Besides, to make you be rest assured of our dumps, we provide IBM S2000-024 exam demo for you to free download. Microsoft AZ-104-KR - You can totally relay on us.
Updated: May 28, 2022