Through all these years' experience, our 1Z0-804 Latest Study Guide Free training materials are becoming more and more prefect. Moreover, we hold considerate after-sales services and sense-and-respond tenet all these years. So if you get any questions of our 1Z0-804 Latest Study Guide Free learning guide, please get us informed. We also hope that our products are really worth buying. Therefore, the quality of 1Z0-804 Latest Study Guide Free training engine is absolutely leading in the industry. All exams from different suppliers will be easy to handle.
1Z0-804 Latest Study Guide Free actual test guide is your best choice.
In the matter of quality, our 1Z0-804 - Java SE 7 Programmer II Exam Latest Study Guide Free practice engine is unsustainable with reasonable prices. Exam Questions And Answers 1Z0-804 Fee training materials will definitely live up to your expectations. Not only our Exam Questions And Answers 1Z0-804 Fee study materials contain the latest exam questions and answers, but also the pass rate is high as 98% to 100%.
Because all of them have realized that it is indispensable to our daily life and work. With the high employment pressure, more and more people want to ease the employment tension and get a better job. The best way for them to solve the problem is to get the 1Z0-804 Latest Study Guide Free certification.
Oracle 1Z0-804 Latest Study Guide Free - More useful certifications mean more ways out.
We attract customers by our fabulous 1Z0-804 Latest Study Guide Free certification material and high pass rate, which are the most powerful evidence to show our strength. We are so proud to tell you that according to the statistics from our customers’ feedback, the pass rate among our customers who prepared for the exam with our 1Z0-804 Latest Study Guide Free test guide have reached as high as 99%, which definitely ranks the top among our peers. Hence one can see that the Java SE 7 Programmer II Exam learn tool compiled by our company are definitely the best choice for you.
A good learning platform should not only have abundant learning resources, but the most intrinsic things are very important, and the most intuitive things to users are also indispensable. The 1Z0-804 Latest Study Guide Free test material is professional editorial team, each test product layout and content of proofreading are conducted by experienced professionals who have many years of rich teaching experiences, so by the editor of fine typesetting and strict check, the latest 1Z0-804 Latest Study Guide Free exam torrent is presented to each user's page is refreshing, but also ensures the accuracy of all kinds of learning materials is extremely high.
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
So we take this factor into consideration, develop the most efficient way for you to prepare for the EMC D-SNC-DY-00 exam, that is the real questions and answers practice mode, firstly, it simulates the real Java SE 7 Programmer II Exam test environment perfectly, which offers greatly help to our customers. Fortinet FCP_FWF_AD-7.4 - Each question and answer are researched and verified by the industry experts. NAHP NRCMA - And on your way to success, they can offer titanic help to make your review more relaxing and effective. We strongly advise you to buy our online engine and windows software of the EMC D-PVM-OE-23 study materials, which can simulate the real test environment. The successful outcomes are appreciable after you getting our SAP C_HRHPC_2405 exam prep.
Updated: May 28, 2022