Users who use our 1Z0-804 Valid Soft Simulations real questions already have an advantage over those who don't prepare for the exam. Our study materials can let users the most closed to the actual test environment simulation training, let the user valuable practice effectively on 1Z0-804 Valid Soft Simulations practice guide, thus through the day-to-day practice, for users to develop the confidence to pass the exam. For examination, the power is part of pass the exam but also need the candidate has a strong heart to bear ability, so our 1Z0-804 Valid Soft Simulations learning dumps through continuous simulation testing, let users less fear when the real test, better play out their usual test levels, can even let them photographed, the final pass exam. The unique questions and answers will definitely impress you with the information packed in them and it will help you to take a decision in their favor. The high quality and high pass rate has bbecome a reason for thousand of candidates to choose. If you are already determined to obtain an international certificate, you must immediately purchase our 1Z0-804 Valid Soft Simulations exam practice.
Java and Middleware 1Z0-804 And your life will become better and better.
With 1Z0-804 - Java SE 7 Programmer II Exam Valid Soft Simulations training prep, you only need to spend 20 to 30 hours of practice before you take the 1Z0-804 - Java SE 7 Programmer II Exam Valid Soft Simulations exam. To be recognized as the leading international exam bank in the world through our excellent performance, our Java SE 7 Programmer II Exam qualification test are being concentrated on for a long time and have accumulated mass resources and experience in designing study materials. There is plenty of skilled and motivated staff to help you obtain the Java SE 7 Programmer II Exam exam certificate that you are looking forward.
Thousands of people attempt 1Z0-804 Valid Soft Simulations exam but majorly fails despite of having good professional experience, because only practice and knowledge isn’t enough a person needs to go through the exam material designed by Oracle, otherwise there is no escape out of reading. Well, you have landed at the right place; Omgzlook offers your experts designed material which will gauge your understanding of various topics. Oracle Certification exams are essential to move ahead, because being certified professional a well-off career would be in your hand.
Oracle 1Z0-804 Valid Soft Simulations - So just come and have a try!
We think of providing the best services of 1Z0-804 Valid Soft Simulations exam questions as our obligation. So we have patient after-sales staff offering help 24/7 and solve your problems all the way. Those considerate services are thoughtful for your purchase experience and as long as you need us, we will solve your problems. Our staff is suffer-able to your any questions related to our 1Z0-804 Valid Soft Simulations test guide. If you get any suspicions, we offer help 24/7 with enthusiasm and patience. Apart from our stupendous 1Z0-804 Valid Soft Simulations latest dumps, our after-sales services are also unquestionable. Your decision of the practice materials may affects the results you concerning most right now. Good exam results are not accidents, but the results of careful preparation and high quality and accuracy materials like our 1Z0-804 Valid Soft Simulations practice materials.
It is a package of 1Z0-804 Valid Soft Simulations braindumps that is prepared by the proficient experts. These 1Z0-804 Valid Soft Simulations exam questions dumps are of high quality and are designed for the convenience of the candidates.
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.
IBM C1000-169 - It is a popular belief that only processional experts can be the leading one to do some adept job. So our CheckPoint 156-587 exam prep receives a tremendous ovation in market over twenty years. So do not splurge time on searching for the perfect practice materials, because our SAP C-DBADM-2404 guide materials are exactly what you need to have. We all know that pass the Fortinet FCP_FWF_AD-7.4 exam will bring us many benefits, but it is not easy for every candidate to achieve it. If you try to free download the demos on the website, and you will be amazed by our excellent Microsoft PL-100 preparation engine.
Updated: May 28, 2022