If you are still worried about your exam, our exam dumps may be your good choice. Our 1Z0-804 Flexible Learning Mode training dumps cover nearly 85% real test materials so that if you master our dumps questions and answers you can clear exams successfully. Don't worry over trifles. In addition, the 1Z0-804 Flexible Learning Mode exam dumps system from our company can help all customers ward off network intrusion and attacks prevent information leakage, protect user machines network security. If you choose our 1Z0-804 Flexible Learning Mode study questions as your study tool, we can promise that we will try our best to enhance the safety guarantees and keep your information from revealing, and your privacy will be protected well. 1Z0-804 Flexible Learning Mode free demo is available for free downloading, and you can do your decision according to the assessment.
Java and Middleware 1Z0-804 A bold attempt is half success.
We can make sure that all employees in our company have wide experience and advanced technologies in designing the 1Z0-804 - Java SE 7 Programmer II Exam Flexible Learning Mode study dump. Using 1Z0-804 Latest Exam Lab Questions real questions will not only help you clear exam with less time and money but also bring you a bright future. We are looking forward to your join.
Our 1Z0-804 Flexible Learning Mode study materials can have such a high pass rate, and it is the result of step by step that all members uphold the concept of customer first. If you use a trial version of 1Z0-804 Flexible Learning Mode training prep, you can find that our study materials have such a high passing rate and so many users support it. After using the trial version, we believe that you will be willing to choose 1Z0-804 Flexible Learning Mode exam questions.
Oracle 1Z0-804 Flexible Learning Mode had a deeper impact on our work.
Our product boosts many advantages and it is worthy for you to buy it. You can have a free download and tryout of our 1Z0-804 Flexible Learning Mode exam torrents before purchasing. After you purchase our product you can download our 1Z0-804 Flexible Learning Mode study materials immediately. We will send our product by mails in 5-10 minutes. We provide free update and the discounts for the old client. If you have any doubts or questions you can contact us by mails or the online customer service personnel and we will solve your problem as quickly as we can. Our 1Z0-804 Flexible Learning Mode exam materials boost high passing rate and if you are unfortunate to fail in exam we can refund you in full at one time immediately. The learning costs you little time and energy and you can commit yourself mainly to your jobs or other important things.
However, the exam is very difficult for a lot of people. Especially if you do not choose the correct study materials and find a suitable way, it will be more difficult for you to pass the exam and get the 1Z0-804 Flexible Learning Mode related certification.
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
Our The Open Group OGEA-101 test questions will help customers learn the important knowledge about exam. Thus, users do not have to worry about such trivial issues as typesetting and proofreading, just focus on spending the most practice to use our MuleSoft MCPA-Level-1 learning materials. We believe that our SAP C-ARSUM-2404 test torrent can help you improve yourself and make progress beyond your imagination. Believe it or not, our SAP C_S4FTR_2023 preparation questions will relieve you from poverty. Many clients cannot stop praising us in this aspect and become regular customer for good on our EMC D-PVM-OE-23 study guide.
Updated: May 28, 2022