High accuracy and high quality are the most important things we always looking for. Compared with the other products in the market, our 1Z0-804 Test Camp Questions latest questions grasp of the core knowledge and key point of the real exam, the targeted and efficient Java SE 7 Programmer II Exam study training dumps guarantee our candidates to pass the test easily. Passing exam won’t be a problem anymore as long as you are familiar with our 1Z0-804 Test Camp Questions exam material (only about 20 to 30 hours practice). Dear customers, if you are prepared to take the exam with the help of excellent 1Z0-804 Test Camp Questions learning materials on our website, the choice is made brilliant. Our 1Z0-804 Test Camp Questions training materials are your excellent choices, especially helpful for those who want to pass the exam without bountiful time and eager to get through it successfully. There is considerate and concerted cooperation for your purchasing experience on our 1Z0-804 Test Camp Questions exam braindumpsaccompanied with patient staff with amity.
Java and Middleware 1Z0-804 Join us and you will be one of them.
Our printable 1Z0-804 - Java SE 7 Programmer II Exam Test Camp Questions real exam dumps, online engine and windows software are popular among candidates. Our 1Z0-804 Latest Dumps Ppt certification questions are close to the real exam and the questions and answers of the test bank cover the entire syllabus of the real exam and all the important information about the exam. Our 1Z0-804 Latest Dumps Ppt learning dump can stimulate the real exam’s environment to make the learners be personally on the scene and help the learners adjust the speed when they attend the real exam.
If you fail to pass the exam, we will give a full refund. 1Z0-804 Test Camp Questions learning guide hopes to progress together with you and work together for their own future. The high passing rate of 1Z0-804 Test Camp Questions exam training also requires your efforts.
Oracle 1Z0-804 Test Camp Questions - It is quite convenient.
Thousands of people will compete with you to get the 1Z0-804 Test Camp Questions certificate. You must feel scared and disappointed. Do not lose hope. Our study materials come to your help. We will enhance your knowledge about the 1Z0-804 Test Camp Questions exam. You just need to follow our 1Z0-804 Test Camp Questions study materials to prepare the exam. No extra reference books are needed. And our pass rate is proved by our worthy customers to be high as 98% to 100%. You will pass the exam easily with our 1Z0-804 Test Camp Questions practice braindumps.
If you are better, you will have a more relaxed life. 1Z0-804 Test Camp Questions guide materials allow you to increase the efficiency of your work.
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 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: 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
our CIW 1D0-720 study materials will also save your time and energy in well-targeted learning as we are going to make everything done in order that you can stay focused in learning our CIW 1D0-720 study materials without worries behind. As long as our SAP P_SAPEA_2023 learning material updated, users will receive the most recent information from our SAP P_SAPEA_2023 learning materials. On Omgzlook website you can free download part of the exam questions and answers about Oracle certification Splunk SPLK-2003 exam to quiz our reliability. Microsoft MD-102 - Users can not only learn new knowledge, can also apply theory into the actual problem, but also can leak fill a vacancy, can say such case selection is to meet, so to grasp the opportunity! Microsoft MD-102 - If you do not have participated in a professional specialized training course, you need to spend a lot of time and effort to prepare for the exam.
Updated: May 28, 2022