Or you will forget the so-called good, although all kinds of digital device convenient now we read online, but many of us are used by written way to deepen their memory patterns. Our 1Z0-804 Exam Online prep guide can be very good to meet user demand in this respect, allow the user to read and write in a good environment continuously consolidate what they learned. In order to facilitate the user's offline reading, the 1Z0-804 Exam Online study braindumps can better use the time of debris to learn, especially to develop PDF mode for users. To pass the Oracle 1Z0-804 Exam Online exam is a dream who are engaged in IT industry. If you want to change the dream into reality, you only need to choose the professional training. We can proudly claim that you can successfully pass the exam just on the condition that you study with our 1Z0-804 Exam Online preparation materials for 20 to 30 hours.
So are our 1Z0-804 Exam Online exam braindumps!
That is why our 1Z0-804 - Java SE 7 Programmer II Exam Exam Online exam questions are popular among candidates. There are so many advantages of our 1Z0-804 Latest Exam Camp Questions actual exam, and you are welcome to have a try! We have put substantial amount of money and effort into upgrading the quality of our 1Z0-804 Latest Exam Camp Questions preparation materials, into our own 1Z0-804 Latest Exam Camp Questions sales force and into our after sale services.
Time is flying and the exam date is coming along, which is sort of intimidating considering your status of review process. The more efficient the materials you get, the higher standard you will be among competitors. So, high quality and high accuracy rate 1Z0-804 Exam Online practice materials are your ideal choice this time.
Oracle 1Z0-804 Exam Online - Or you can choose to free update your exam dumps.
With the development of society, the 1Z0-804 Exam Online certificate in our career field becomes a necessity for developing the abilities. Passing the 1Z0-804 Exam Online and obtaining the certificate may be the fastest and most direct way to change your position and achieve your goal. And we are just right here to give you help. Being considered the most authentic brand in this career, our professional experts are making unremitting efforts to provide our customers the latest and valid {CertName} exam simulation.
After using our software, you will know that it is not too difficult to pass 1Z0-804 Exam Online exam. You will find some exam techniques about how to pass 1Z0-804 Exam Online exam from the exam materials and question-answer analysis provided by our Omgzlook.
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 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: 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
But we can help all of these candidates on HP HPE0-V27 study questions. Quality should be tested by time and quantity, which is also the guarantee that we give you to provide ISACA IT-Risk-Fundamentals exam software for you. So let our CompTIA N10-009 practice guide to be your learning partner in the course of preparing for the exam, it will be a wise choice for you to choose our CompTIA N10-009 study dumps. NetSuite NetSuite-Administrator - Now you can have these precious materials. After nearly ten years' efforts, now our company have become the topnotch one in the field, therefore, if you want to pass the CompTIA SY0-701 exam as well as getting the related certification at a great ease, I strongly believe that the CompTIA SY0-701 study materials compiled by our company is your solid choice.
Updated: May 28, 2022