Then join our preparation kit. 1Z0-804 Test Discount is an excellent platform that provides an 1Z0-804 Test Discount study materials that are officially equipped by an expert. Our 1Z0-804 Test Discount exam material can be studied and passed quickly within one week of the exam. The combination of 1Z0-804 Test Discount Exam practice software and PDF Questions and Answers make the preparation easier and increase the chances to get higher score in the 1Z0-804 Test Discount exam. 1Z0-804 Test Discount exam materials provide you the best learning prospects, by employing minimum exertions through the results are satisfyingly surprising, beyond your expectations. What most useful is that PDF format of our 1Z0-804 Test Discount exam materials can be printed easily, you can learn it everywhere and every time you like.
Java and Middleware 1Z0-804 Also, they have respect advantages.
Many people have gained good grades after using our 1Z0-804 - Java SE 7 Programmer II Exam Test Discount real dumps, so you will also enjoy the good results. However, how to pass Oracle certification Valid 1Z0-804 Exam Pass4Sure exam quickly and simply? Our Omgzlook can always help you solve this problem quickly. In Omgzlook we provide the Valid 1Z0-804 Exam Pass4Sure certification exam training tools to help you pass the exam successfully.
Even if you are newbie, it does not matter as well. To pass the exam in limited time, you will find it as a piece of cake with the help of our 1Z0-804 Test Discount study engine! Our 1Z0-804 Test Discount practice materials are suitable to exam candidates of different levels.
Oracle 1Z0-804 Test Discount - A bad situation can show special integrity.
With the help of our 1Z0-804 Test Discount study guide, you can adjust yourself to the exam speed and stay alert according to the time-keeper that we set on our 1Z0-804 Test Discount training materials. Therefore, you can trust on our 1Z0-804 Test Discount exam materials for this effective simulation function will eventually improve your efficiency and assist you to succeed in the 1Z0-804 Test Discount exam. And we believe you will pass the 1Z0-804 Test Discount exam just like the other people!
Since to choose to participate in the Oracle 1Z0-804 Test Discount certification exam, of course, it is necessary to have to go through. This is also the performance that you are strong-willed.
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
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
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: 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
Scrum PSK-I - As you know, our v practice exam has a vast market and is well praised by customers. As one of the most important exam in Oracle certification exam, the certificate of Oracle Huawei H19-402_V1.0 will give you benefits. Considering your practical constraint and academic requirements of the Hitachi HQT-4420 exam preparation, you may choose the Hitachi HQT-4420 practice materials with following traits. EMC D-DS-OP-23 - You can experience the feeling in the actual test in advance so that you will not feel anxious in the real exam. There are many benefits to buy IBM C1000-005 guide torrent such as after the client pass the exam they can enter in the big company and double their wages.
Updated: May 28, 2022