The dumps cover all questions you will encounter in the actual exam. So, you just master the questions and answers in the dumps and it is easy to pass 1Z0-804 Learning Materials test. As one of the most important exam in Oracle certification exam, the certificate of Oracle 1Z0-804 Learning Materials will give you benefits. Considering your practical constraint and academic requirements of the 1Z0-804 Learning Materials exam preparation, you may choose the 1Z0-804 Learning Materials practice materials with following traits. High quality and accuracy with trustworthy reputation; processional experts group specific in this line; considerate after-sales services are having been tested and verified all these years, 1Z0-804 Learning Materials training guide is fully applicable to your needs. After you use the SOFT version, you can take your exam in a relaxed attitude which is beneficial to play your normal level.
Java and Middleware 1Z0-804 It is never too late to change.
Java and Middleware 1Z0-804 Learning Materials - Java SE 7 Programmer II Exam If you are urgent to pass exam our exam materials will be suitable for you. There is no doubt that the certification has become more and more important for a lot of people, especial these people who are looking for a good job, and it has been a general trend. More and more workers have to spend a lot of time on meeting the challenge of gaining the 1Z0-804 Valid Test Dumps Questions certification by sitting for an exam.
Please totally trust the accuracy of questions and answers. Attending Omgzlook, you will have best exam dumps for the certification of 1Z0-804 Learning Materials exam tests. We offer you the most accurate 1Z0-804 Learning Materials exam answers that will be your key to pass the certification exam in your first try.
Oracle 1Z0-804 Learning Materials - You can take advantage of the certification.
Our 1Z0-804 Learning Materials exam review contains the latest test questions and accurate answers along with the professional explanations. A little attention to prepare 1Z0-804 Learning Materials practice test will improve your skills to clear exam with high passing score. For most busy IT workers, 1Z0-804 Learning Materials dumps pdf is the best alternative to your time and money to secure the way of success in the IT filed.
Our 1Z0-804 Learning Materials study materials allow you to improve your competitiveness in a short period of time. With the help of our 1Z0-804 Learning Materials guide prep, you will be the best star better than others.
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 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: 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
You can find latest VMware 2V0-31.24 test answers and questions in our pass guide and the detailed explanations will help you understand the content easier. In order to facilitate the user real-time detection of the learning process, we HP HPE7-A01 exam material provideds by the questions and answers are all in the past.it is closely associated, as our experts in constantly update products every day to ensure the accuracy of the problem, so all HP HPE7-A01 practice materials are high accuracy. As the questions of our Autodesk ACP-01101 exam dumps are involved with heated issues and customers who prepare for the Autodesk ACP-01101 exams must haven’t enough time to keep trace of Autodesk ACP-01101 exams all day long. Our study materials can let users the most closed to the actual test environment simulation training, let the user valuable practice effectively on Amazon ANS-C01-KR practice guide, thus through the day-to-day practice, for users to develop the confidence to pass the exam. SAP C_S4CFI_2402 - The high quality and high pass rate has bbecome a reason for thousand of candidates to choose.
Updated: May 28, 2022