Omgzlook is a good website for Oracle certification 1Z0-804 Pass4Sure Study Materials exams to provide short-term effective training. And Omgzlook can guarantee your Oracle certification 1Z0-804 Pass4Sure Study Materials exam to be qualified. If you don't pass the exam, we will take a full refund to you. Just as exactly, to obtain the certification of 1Z0-804 Pass4Sure Study Materials exam braindumps, you will do your best to pass the according exam without giving up. You may not have to take the trouble to study with the help of our 1Z0-804 Pass4Sure Study Materials practice materials. Omgzlook can make you feel at ease, because we have a lot of IT certification exam related training materials with high quality, coverage of the outline and pertinence, too, which will bring you a lot of help.
Java and Middleware 1Z0-804 Or you can choose to free update your exam dumps.
Java and Middleware 1Z0-804 Pass4Sure Study Materials - Java SE 7 Programmer II Exam 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 Latest 1Z0-804 Study Questions Book exam. You will find some exam techniques about how to pass Latest 1Z0-804 Study Questions Book exam from the exam materials and question-answer analysis provided by our Omgzlook.
But we can help all of these candidates on 1Z0-804 Pass4Sure Study Materials study questions. Numerous grateful feedbacks form our loyal customers proved that we are the most popular vendor in this field to offer our 1Z0-804 Pass4Sure Study Materials preparation questions. You can totally relay on us.
Oracle 1Z0-804 Pass4Sure Study Materials - Now you can have these precious materials.
Our company is a multinational company which is famous for the 1Z0-804 Pass4Sure Study Materials training materials in the international market. After nearly ten years' efforts, now our company have become the topnotch one in the field, therefore, if you want to pass the 1Z0-804 Pass4Sure Study Materials exam as well as getting the related certification at a great ease, I strongly believe that the 1Z0-804 Pass4Sure Study Materials study materials compiled by our company is your solid choice.
You set timed 1Z0-804 Pass4Sure Study Materials test and practice again and again. Besides, 1Z0-804 Pass4Sure Study Materials exam test engine cover most valid test questions so that it can guide you and help you have a proficient & valid preparation process.
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
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: 4
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: 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
It is universally accepted that in this competitive society in order to get a good job we have no choice but to improve our own capacity and explore our potential constantly, and try our best to get the related Amazon SAA-C03-KR certification is the best way to show our professional ability, however, the Amazon SAA-C03-KR exam is hard nut to crack but our Amazon SAA-C03-KR preparation questions are closely related to the exam, it is designed for you to systematize all of the key points needed for the Amazon SAA-C03-KR exam. Now, let’s start your preparation with Fortinet FCSS_NST_SE-7.4 training material. We will update the content of IIA IIA-CHAL-QISA test guide from time to time according to recent changes of examination outline and current policies, so that every examiner can be well-focused and complete the exam focus in the shortest time. All real questions just need to practice one or two days and remember the answers will save you much time in SAP C_BW4H_2404 real exam. As long as you pay at our platform, we will deliver the relevant APEGS NPPE exam materials to your mailbox within the given time.
Updated: May 28, 2022