Today, in an era of fierce competition, how can we occupy a place in a market where talent is saturated? The answer is a certificate. What the certificate main? All kinds of the test 1Z0-804 Test Questions Vce certification, prove you through all kinds of qualification certificate, it is not hard to find, more and more people are willing to invest time and effort on the 1Z0-804 Test Questions Vce exam guide, because get the test 1Z0-804 Test Questions Vce certification is not an easy thing, so, a lot of people are looking for an efficient learning method. And here, fortunately, you have found the 1Z0-804 Test Questions Vce exam braindumps, a learning platform that can bring you unexpected experiences. If you choose Omgzlook, success is not far away for you. And soon you can get Oracle certification 1Z0-804 Test Questions Vce exam certificate. The functions of the software version are very special.
Java and Middleware 1Z0-804 We guarantee you 100% certified.
Java and Middleware 1Z0-804 Test Questions Vce - Java SE 7 Programmer II Exam The last but not least we have professional groups providing guidance in terms of download and installment remotely. Everyone has their own dreams. What is your dream? Is it a promotion, a raise or so? My dream is to pass the Oracle Reliable Test 1Z0-804 Simulator Online exam.
Most of the experts have been studying in the professional field for many years and have accumulated much experience in our 1Z0-804 Test Questions Vce practice questions. The high-quality of our 1Z0-804 Test Questions Vce exam questions are praised by tens of thousands of our customers. You may try it!
Oracle 1Z0-804 Test Questions Vce - If you fail, don't forget to learn your lesson.
All exam materials in 1Z0-804 Test Questions Vce learning materials contain PDF, APP, and PC formats. They have the same questions and answers but with different using methods. If you like to take notes randomly according to your own habits while studying, we recommend that you use the PDF format of our 1Z0-804 Test Questions Vce study guide. And besides, you can take it with you wherever you go for it is portable and takes no place. So the PDF version of our 1Z0-804 Test Questions Vce exam questions is convenient.
Downloading the 1Z0-804 Test Questions Vce free demo doesn't cost you anything and you will learn about the pattern of our practice exam and the accuracy of our 1Z0-804 Test Questions Vce test answers. We constantly check the updating of 1Z0-804 Test Questions Vce vce pdf to follow the current exam requirement and you will be allowed to free update your pdf files one-year.
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
We often ask, what is the purpose of learning? Why should we study? Why did you study for Snowflake DEA-C01exam so long? As many people think that, even if one day we forget the formula for the area of a triangle, we can still live very well, but if it were not for the knowledge of learning Snowflake DEA-C01 exam and try to obtain certification, how can we have the opportunity to good to future life? So, the examination is necessary, only to get the test Snowflake DEA-C01 certification, get a certificate, to prove better us, to pave the way for our future life. Our EMC D-AV-DY-23 practice exam available in three modes, pdf files, and PC test engine and online test engine, which apply to any level of candidates. Improving your efficiency and saving your time has always been the goal of our SAP C-THR92-2405 preparation exam. You can use the Splunk SPLK-1002 online test off-line, while you should run it in the network environment. Amazon SOA-C02 - The clients can choose the version which supports their equipment on their hands to learn.
Updated: May 28, 2022