To keep with the fast-pace social life, we make commitment to all of our customers that we provide the fastest delivery services on our 1Z0-804 Tests study guide for your time consideration. As most of the people tend to use express delivery to save time, our 1Z0-804 Tests preparation exam will be sent out within 5-10 minutes after purchasing. As long as you pay at our platform, we will deliver the relevant 1Z0-804 Tests exam materials to your mailbox within the given time. If you are interested in this version, you can purchase it. This version provides only the questions and answers of 1Z0-804 Tests exam braindumps but also some functions easy to practice and master. Our passing rate is 98%-100% and our 1Z0-804 Tests test prep can guarantee that you can pass the exam easily and successfully.
1Z0-804 Tests actual test guide is your best choice.
In the matter of quality, our 1Z0-804 - Java SE 7 Programmer II Exam Tests practice engine is unsustainable with reasonable prices. Success does not come only from the future, but it continues to accumulate from the moment you decide to do it. At the moment you choose 1Z0-804 Reliable Exam Duration practice quiz, you have already taken the first step to success.
The best way for them to solve the problem is to get the 1Z0-804 Tests certification. Because the certification is the main symbol of their working ability, if they can own the 1Z0-804 Tests certification, they will gain a competitive advantage when they are looking for a job. An increasing number of people have become aware of that it is very important for us to gain the 1Z0-804 Tests exam questions in a short time.
Oracle 1Z0-804 Tests - The reality is often cruel.
We attract customers by our fabulous 1Z0-804 Tests certification material and high pass rate, which are the most powerful evidence to show our strength. We are so proud to tell you that according to the statistics from our customers’ feedback, the pass rate among our customers who prepared for the exam with our 1Z0-804 Tests test guide have reached as high as 99%, which definitely ranks the top among our peers. Hence one can see that the Java SE 7 Programmer II Exam learn tool compiled by our company are definitely the best choice for you.
A good learning platform should not only have abundant learning resources, but the most intrinsic things are very important, and the most intuitive things to users are also indispensable. The 1Z0-804 Tests test material is professional editorial team, each test product layout and content of proofreading are conducted by experienced professionals who have many years of rich teaching experiences, so by the editor of fine typesetting and strict check, the latest 1Z0-804 Tests exam torrent is presented to each user's page is refreshing, but also ensures the accuracy of all kinds of learning materials is extremely high.
1Z0-804 PDF DEMO:
QUESTION NO: 1
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: 2
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: 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
So we take this factor into consideration, develop the most efficient way for you to prepare for the EMC D-ECS-DY-23 exam, that is the real questions and answers practice mode, firstly, it simulates the real Java SE 7 Programmer II Exam test environment perfectly, which offers greatly help to our customers. We employ the senior lecturers and authorized authors who have published the articles about the test to compile and organize the Scrum PSPO-II prep guide dump. To help you get to know the exam questions and knowledge of the Adobe AD0-E908 practice exam successfully and smoothly, our experts just pick up the necessary and essential content in to our Adobe AD0-E908 test guide with unequivocal content rather than trivia knowledge that exam do not test at all. We strongly advise you to buy our online engine and windows software of the Splunk SPLK-1002 study materials, which can simulate the real test environment. Many exam candidates ascribe their success to our SAP C_HRHPC_2405 real questions and become our regular customers eventually.
Updated: May 28, 2022