We can provide you with a free trial version. If you try another version and feel that our 1Z0-804 Relevant Exam Dumps practice quiz are not bad, you can apply for another version of the learning materials again and choose the version that suits you best! If you try on our 1Z0-804 Relevant Exam Dumps exam braindumps, you will be very satisfied with its content and design. The moment you money has been transferred to our account, and our system will send our 1Z0-804 Relevant Exam Dumpstraining dumps to your mail boxes so that you can download 1Z0-804 Relevant Exam Dumps exam questions directly. It is fast and convenient out of your imagination. We can promise higher qualification rates for our 1Z0-804 Relevant Exam Dumps exam question than materials of other institutions.
Our 1Z0-804 Relevant Exam Dumps exam materials can help you realize it.
What are you still hesitating for? Hurry to buy our 1Z0-804 - Java SE 7 Programmer II Exam Relevant Exam Dumps learning engine now! Our Valid 1Z0-804 Exam Questions Vce guide materials are high quality and high accuracy rate products. It is all about the superior concreteness and precision of the Valid 1Z0-804 Exam Questions Vce exam questions that helps.
If you are worry about the coming 1Z0-804 Relevant Exam Dumps exam, our 1Z0-804 Relevant Exam Dumps study materials will help you solve your problem. In order to promise the high quality of our 1Z0-804 Relevant Exam Dumps exam questions, our company has outstanding technical staff, and has perfect service system after sale. More importantly, our good 1Z0-804 Relevant Exam Dumps guide quiz and perfect after sale service are approbated by our local and international customers.
Oracle 1Z0-804 Relevant Exam Dumps - This is a practice test website.
If you require any further information about either our 1Z0-804 Relevant Exam Dumps preparation exam or our corporation, please do not hesitate to let us know. High quality 1Z0-804 Relevant Exam Dumps practice materials leave a good impression on the exam candidates and bring more business opportunities in the future. And many of our cutomers use our 1Z0-804 Relevant Exam Dumps exam questions as their exam assistant and establish a long cooperation with us.
Omgzlook site has a long history of providing Oracle 1Z0-804 Relevant Exam Dumps exam certification training materials. It has been a long time in certified IT industry with well-known position and visibility.
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
All the preoccupation based on your needs and all these explain our belief to help you have satisfactory and comfortable purchasing services on the Microsoft MB-310 study guide. APICS CSCP - Because Omgzlook has a strong IT team of experts, they are committed to study exam questions and answers, and serve the vital interests of the majority of candidates. Our APM APM-PFQ study guide may not be as famous as other brands for the time being, but we can assure you that we won't lose out on quality. EMC D-PEXE-IN-A-00 - It is an undeniable fact. And this version also helps establish the confidence of the candidates when they attend the CompTIA 220-1102 exam after practicing.
Updated: May 28, 2022