Our free demos of our 1Z0-804 Test Price learning questions will help you know our study materials comprehensively. As we have three different kinds of the 1Z0-804 Test Price practice braindumps, accordingly we have three kinds of the free demos as well. They are a small part of the questions and answers of the 1Z0-804 Test Price learning quiz. High speed and high efficiency are certainly the most important points. In today's society, high efficiency is hot topic everywhere. The free demo has three versions.
Java and Middleware 1Z0-804 Never say you can not do it.
Java and Middleware 1Z0-804 Test Price - Java SE 7 Programmer II Exam Where is a will, there is a way. In addition, the exam qualification can prove that you have high skills. However, like all the exams, Oracle Exam 1Z0-804 Discount test is also very difficult.
Here our 1Z0-804 Test Price study materials are tailor-designed for you. Living in such a world where competitiveness is a necessity that can distinguish you from others, every one of us is trying our best to improve ourselves in every way. It has been widely recognized that the 1Z0-804 Test Price exam can better equip us with a newly gained personal skill, which is crucial to individual self-improvement in today’s computer era.
Oracle 1Z0-804 Test Price - Omgzlook has a huge IT industry elite team.
Are you facing challenges in your career? Would you like to better prove yourself to others by improving your ability? Would you like to have more opportunities to get promoted? Hurry to sign up for IT certification exam and get the IT certificate. Oracle certification exam is one of the important exams. If you obtain Oracle certificate, you will get a great help. Because Oracle 1Z0-804 Test Price certification test is a very important exam, you can begin with passing 1Z0-804 Test Price test. Are you wandering how to pass rapidly 1Z0-804 Test Price certification exam? Omgzlook certification training dumps can help you to achieve your goals.
Now many IT professionals agree that Oracle certification 1Z0-804 Test Price exam certificate is a stepping stone to the peak of the IT industry. Oracle certification 1Z0-804 Test Price exam is an exam concerned by lots of IT professionals.
1Z0-804 PDF DEMO:
QUESTION NO: 1
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: 2
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: 3
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
QUESTION NO: 4
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: 5
Given the code fragment:
What is the result?
A.Java 7
B.Java 6
C.Java 7, Java 6
D.Java 7 java 6
E.Java
Answer: C
Explanation:
regex: Java / one or more anything !!! / ends with a digit so it is the source string
Recently, NAHP NRCMA exam certification, attaching more attention from more and more people in IT industry, has become an important standard to balance someone's IT capability. Omgzlook's simulation test software and related questions of Splunk SPLK-2003 certification exam are produced by the analysis of Splunk SPLK-2003 exam outline, and they can definitely help you pass your first time to participate in Splunk SPLK-2003 certification exam. To resolve your doubts, we assure you that if you regrettably fail the SASInstitute A00-415 exam, we will full refund all the cost you buy our study materials. Oracle IIA IIA-CIA-Part2 is a certification exam which is able to change your life. Network Appliance NS0-404 - People's success lies in their good use of every change to self-improve.
Updated: May 28, 2022