If you are a college student, you can learn and use online resources through the student learning platform over the 1Z0-804 Guide study materials. And for an office worker, the 1Z0-804 Guide study engine is desighed to their different learning arrangement as well, such extensive audience greatly improved the core competitiveness of our 1Z0-804 Guide practice quiz, which is according to their aptitude, on-demand, maximum to provide users with better suited to their specific circumstances. Our 1Z0-804 Guide quiz torrent can help you get out of trouble regain confidence and embrace a better life. Our 1Z0-804 Guide exam question can help you learn effectively and ultimately obtain the authority certification of Oracle, which will fully prove your ability and let you stand out in the labor market. So our product is a good choice for you.
Java and Middleware 1Z0-804 Knowledge is wealth.
Java and Middleware 1Z0-804 Guide - Java SE 7 Programmer II Exam Remember this version support Windows system users only. Whenever it is possible, you can begin your study as long as there has a computer. In addition, all installed 1Z0-804 Standard Answers study tool can be used normally.
Get the test 1Z0-804 Guide certification is not achieved overnight, we need to invest a lot of time and energy to review, and the review process is less a week or two, more than a month or two, or even half a year, so 1Z0-804 Guide exam questions are one of the biggest advantage is that it is the most effective tools for saving time for users. Users do not need to spend too much time on 1Z0-804 Guide questions torrent, only need to use their time pieces for efficient learning, the cost is about 20 to 30 hours, users can easily master the test key and difficulties of questions and answers of 1Z0-804 Guide prep guide, and in such a short time acquisition of accurate examination skills, better answer out of step, so as to realize high pass the qualification test, has obtained the corresponding qualification certificate.
Oracle 1Z0-804 Guide - It is easy to carry.
Our company has authoritative experts and experienced team in related industry. To give the customer the best service, all of our company's 1Z0-804 Guide learning materials are designed by experienced experts from various field, so our 1Z0-804 Guide Learning materials will help to better absorb the test sites. One of the great advantages of buying our product is that can help you master the core knowledge in the shortest time. At the same time, our 1Z0-804 Guide learning materials discard the most traditional rote memorization methods and impart the key points of the qualifying exam in a way that best suits the user's learning interests, this is the highest level of experience that our most authoritative think tank brings to our 1Z0-804 Guide learning materials users. Believe that there is such a powerful expert help, our users will be able to successfully pass the qualification test to obtain the qualification certificate.
If you use our study materials, you must walk in front of the reference staff that does not use valid 1Z0-804 Guide real exam. And you will get the according 1Z0-804 Guide certification more smoothly.
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
SAP C_ARP2P_2404 - They can renew your knowledge with high utility with Favorable prices. If you are on the bus, you can choose the APP version of Oracle 1z0-1127-24 training engine. With the development of technology, our EMC D-XTR-OE-A-24 training engine will be updated regularly. SAP C_THR95_2405 - After the new version appears, we will also notify the user at the first time. Our Omgzlook can have a good and quick provide of professional study materials about Oracle certification SAP C_ARSUM_2404 exam.
Updated: May 28, 2022