They are unsuspecting experts who you can count on. Without unintelligible content within our 1Z0-804 Study Dumps study tool, all questions of the exam are based on their professional experience in this industry. Besides, they made three versions for your reference, the PDF, APP and Online software version. So why should people choose us? There are several advantages about our 1Z0-804 Study Dumps latest practice dumps for your reference. In the era of information explosion, people are more longing for knowledge, which bring up people with ability by changing their thirst for knowledge into initiative and "want me to learn" into "I want to learn". So 1Z0-804 Study Dumps exam dumps are definitely valuable acquisitions.
Java and Middleware 1Z0-804 Don't hesitate!
Java and Middleware 1Z0-804 Study Dumps - Java SE 7 Programmer II Exam And we are the leading practice materials in this dynamic market. The efficiency of our Reliable 1Z0-804 Practice Questions Files exam braindumps has far beyond your expectation. On one hand, our Reliable 1Z0-804 Practice Questions Files study materials are all the latest and valid exam questions and answers that will bring you the pass guarantee.
And if you get any questions, please get contact with us, our staff will be online 24/7 to solve your problems all the way. Before you place orders, you can download the free demos of 1Z0-804 Study Dumps practice test as experimental acquaintance. Once you decide to buy, you will have many benefits like free update lasting one-year and convenient payment mode.
Oracle 1Z0-804 Study Dumps - You must seize the good chances when it comes.
Annual test syllabus is essential to predicate the real 1Z0-804 Study Dumps questions. So you must have a whole understanding of the test syllabus. After all, you do not know the 1Z0-804 Study Dumps exam clearly. It must be difficult for you to prepare the 1Z0-804 Study Dumps exam. Then our study materials can give you some guidance. All questions on our 1Z0-804 Study Dumps study materials are strictly in accordance with the knowledge points on newest test syllabus. Also, our experts are capable of predicating the difficult knowledge parts of the 1Z0-804 Study Dumps exam according to the test syllabus. We have tried our best to simply the difficult questions. In order to help you memorize the 1Z0-804 Study Dumps study materials better, we have detailed explanations of the difficult questions such as illustration, charts and referring website. Every year some knowledge is reoccurring over and over. You must ensure that you master them completely.
Every day thousands of people browser our websites to select our 1Z0-804 Study Dumps exam materials. As you can see, many people are inclined to enrich their knowledge reserve.
1Z0-804 PDF DEMO:
QUESTION NO: 1
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: 2
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: 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
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
QUESTION NO: 5
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.
SAP C_LCNC_2406 - We will be 100% providing you convenience and guarantee. IBM C1000-180 - It will play a multiplier effect to help you pass the exam. Since Oracle Salesforce Education-Cloud-Consultant certification is so popular and our Omgzlook can not only do our best to help you pass the exam, but also will provide you with one year free update service, so to choose Omgzlook to help you achieve your dream. Now you can free download part of practice questions and answers of Oracle certification Dell D-DPS-A-01 exam on Omgzlook. People who have got Oracle SAP C_CPE_16 certification often have much higher salary than counterparts who don't have the certificate.
Updated: May 28, 2022