To become more powerful and struggle for a new self, getting a professional 1Z0-804 Exam Guide Files certification is the first step beyond all questions. We suggest you choose our 1Z0-804 Exam Guide Files test prep ----an exam braindump leader in the field. Since we release the first set of the 1Z0-804 Exam Guide Files quiz guide, we have won good response from our customers and until now---a decade later, our products have become more mature and win more recognition. And we will try our best to satisfy our customers with better quatily and services. Our loyal customers give our 1Z0-804 Exam Guide Files exam materials strong support. How to get the test 1Z0-804 Exam Guide Files certification in a short time, which determines enough qualification certificates to test our learning ability and application level.
Java and Middleware 1Z0-804 It can help you to pass the exam successfully.
With our 1Z0-804 - Java SE 7 Programmer II Exam Exam Guide Files learning materials, you can spend less time but learn more knowledge than others. Only Omgzlook can guarantee you 100% success. Omgzlook allows you to have a bright future.
In order to facilitate the user's offline reading, the 1Z0-804 Exam Guide Files study braindumps can better use the time of debris to learn, especially to develop PDF mode for users. In this mode, users can know the 1Z0-804 Exam Guide Files prep guide inside the learning materials to download and print, easy to take notes on the paper, and weak link of their memory, at the same time, every user can be downloaded unlimited number of learning, greatly improve the efficiency of the users with our 1Z0-804 Exam Guide Files exam questions. 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.
Oracle 1Z0-804 Exam Guide Files - So, hurry to take action.
Our windows software and online test engine of the 1Z0-804 Exam Guide Files exam questions are suitable for all age groups. At the same time, our operation system is durable and powerful. So you totally can control the 1Z0-804 Exam Guide Files study materials flexibly. It is enough to wipe out your doubts now. If you still have suspicions, please directly write your questions and contact our online workers. And we will give you the most professions suggestions on our 1Z0-804 Exam Guide Files learning guide.
Many times getting a right method is important and more efficient than spending too much time and money in vain. Our Omgzlook team devote themselves to studying the best methods to help you pass 1Z0-804 Exam Guide Files exam certification.
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
Now let's take a look at why a worthy product of your choice is our EMC D-CIS-FN-23 actual exam. What we have done is to make you more confident in Microsoft PL-400-KR exam. VMware 3V0-61.24 - When choosing a product, you will be entangled. While others are playing games online, you can do online Fortinet FCSS_SASE_AD-23 exam questions. Microsoft PL-400 - However, we believe that with the excellent quality and good reputation of our study materials, we will be able to let users select us in many products.
Updated: May 28, 2022