To contribute the long-term of cooperation with our customers, we offer great discount for purchasing our 1Z0-804 Valid Exam Cram Pdf exam pdf. Comparing to other dumps vendors, the price of our 1Z0-804 Valid Exam Cram Pdf questions and answers is reasonable for every candidate. You will grasp the overall knowledge points of 1Z0-804 Valid Exam Cram Pdf actual test with our pass guide and the accuracy of our 1Z0-804 Valid Exam Cram Pdf exam answers will enable you spend less time and effort. If you compare our 1Z0-804 Valid Exam Cram Pdf training engine with the real exam, you will find that our study materials are highly similar to the real exam questions. So you just need to memorize our questions and answers of the 1Z0-804 Valid Exam Cram Pdf exam simulation, you are bound to pass the exam. To enhance further your exam ability and strengthen your learning, you can benefit yourself getting practice Oracle real dumps.
Java and Middleware 1Z0-804 You are the best and unique in the world.
You will never worry about the 1Z0-804 - Java SE 7 Programmer II Exam Valid Exam Cram Pdf exam. Not only we offer the best 1Z0-804 Reliable Exam Simulator Free training prep, but also our sincere and considerate attitude is praised by numerous of our customers. To cope with the fast growing market, we will always keep advancing and offer our clients the most refined technical expertise and excellent services about our 1Z0-804 Reliable Exam Simulator Free exam questions.
Our company committed all versions of 1Z0-804 Valid Exam Cram Pdf practice materials attached with free update service. When 1Z0-804 Valid Exam Cram Pdf exam preparation has new updates, the customer services staff will send you the latest version. So we never stop the pace of offering the best services and 1Z0-804 Valid Exam Cram Pdf practice materials for you.
Oracle 1Z0-804 Valid Exam Cram Pdf - You can learn anytime, anywhere.
In modern society, we are busy every day. So the individual time is limited. The fact is that if you are determined to learn, nothing can stop you! You are lucky enough to come across our 1Z0-804 Valid Exam Cram Pdf exam materials. Our 1Z0-804 Valid Exam Cram Pdf study guide can help you improve in the shortest time. Even you do not know anything about the 1Z0-804 Valid Exam Cram Pdf exam. It absolutely has no problem. You just need to accept about twenty to thirty hours’ guidance of our 1Z0-804 Valid Exam Cram Pdf learning prep, it is easy for you to take part in the exam.
Why is that? The answer is that you get the certificate. What certificate? Certificates are certifying that you have passed various qualifying examinations.
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.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: 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 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.
GARP 2016-FRR - Don't you think it is quite amazing? Just come and have a try! Secondly, the price of the SAP C_S43_2023 study materials is favourable. In order to meet a wide range of tastes, our company has developed the three versions of the Microsoft AZ-801 preparation questions, which includes PDF version, online test engine and windows software. EMC D-CS-DS-23 - We have made all efforts to update our product in order to help you deal with any change, making you confidently take part in the exam. In order to provide a convenient study method for all people, our company has designed the online engine of the Oracle 1z0-915-1 study practice dump.
Updated: May 28, 2022