Your knowledge range will be broadened and your personal skills will be enhanced by using the 1Z0-804 Test Braindumps free pdf torrent, then you will be brave and confident to face the 1Z0-804 Test Braindumps actual test. It is the time for you to earn a well-respected Oracle certification to gain a competitive advantage in the IT job market. As we all know, it is not an easy thing to gain the 1Z0-804 Test Braindumps certification. In order to meet the demand of most of the IT employees, Omgzlook's IT experts team use their experience and knowledge to study the past few years Oracle certification 1Z0-804 Test Braindumps exam questions. Finally, Omgzlook's latest Oracle 1Z0-804 Test Braindumps simulation test, exercise questions and answers have come out. Come and check the free demo in our website you won’t regret it.
Actually, 1Z0-804 Test Braindumps exam really make you anxious.
After our unremitting efforts, 1Z0-804 - Java SE 7 Programmer II Exam Test Braindumps learning guide comes in everybody's expectation. Every version of 1Z0-804 Valid Test Topics study materials that we provide to you has its own advantage: the PDF version has no equipment limited, which can be read anywhere; the online version can use on any electronic equipment there is network available; the software version can simulate the real 1Z0-804 Valid Test Topics exam environment to let you have more real feeling to 1Z0-804 Valid Test Topics real exam, besides the software version can be available installed on unlimited number devices.
By passing the exams multiple times on practice test software, you will be able to pass the real 1Z0-804 Test Braindumps test in the first attempt. With our 1Z0-804 Test Braindumps practice test software, you can simply assess yourself by going through the 1Z0-804 Test Braindumps practice tests. We highly recommend going through the 1Z0-804 Test Braindumps answers multiple times so you can assess your preparation for the 1Z0-804 Test Braindumps exam.
Oracle 1Z0-804 Test Braindumps - You can study any time anywhere you want.
We guarantee that after purchasing our 1Z0-804 Test Braindumps exam torrent, we will deliver the product to you as soon as possible within ten minutes. So you don’t need to wait for a long time and worry about the delivery time or any delay. We will transfer our Java SE 7 Programmer II Exam prep torrent to you online immediately, and this service is also the reason why our 1Z0-804 Test Braindumps test braindumps can win people’s heart and mind. Therefore, you are able to get hang of the essential points in a shorter time compared to those who are not willing to use our 1Z0-804 Test Braindumps exam torrent.
The most important is that our test engine enables you practice 1Z0-804 Test Braindumps exam pdf on the exact pattern of the actual exam. Our IT professionals have made their best efforts to offer you the latest 1Z0-804 Test Braindumps study guide in a smart way for the certification exam preparation.
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.
Passing a Scaled Agile SAFe-APM exam to get a certificate will help you to look for a better job and get a higher salary. Our experts written the accurate Databricks Databricks-Machine-Learning-Associate test answers for exam preparation and created the study guideline for our candidates. The second is expressed in content, which are the proficiency and efficiency of SAP C-S4FTR-2023 study guide. The simulated and interactive learning environment of our Databricks Databricks-Certified-Professional-Data-Engineer practice engine will greatly arouse your learning interests. Microsoft AZ-305 - And they are the masterpieces of processional expertise these area with reasonable prices.
Updated: May 28, 2022