Unlike other kinds of exam files which take several days to wait for delivery from the date of making a purchase, our 1Z0-804 Reliable Practice Test Online study materials can offer you immediate delivery after you have paid for them. The moment you money has been transferred to our account, and our system will send our 1Z0-804 Reliable Practice Test Onlinetraining dumps to your mail boxes so that you can download 1Z0-804 Reliable Practice Test Online exam questions directly. It is fast and convenient out of your imagination. We can promise higher qualification rates for our 1Z0-804 Reliable Practice Test Online exam question than materials of other institutions. Because our products are compiled by experts from various industries and they are based on the true problems of the past years and the development trend of the industry. Meanwhile, if you want to keep studying this course , you can still enjoy the well-rounded services by 1Z0-804 Reliable Practice Test Online test prep, our after-sale services can update your existing 1Z0-804 Reliable Practice Test Online study quiz within a year and a discount more than one year.
Our 1Z0-804 Reliable Practice Test Online exam materials can help you realize it.
What are you still hesitating for? Hurry to buy our 1Z0-804 - Java SE 7 Programmer II Exam Reliable Practice Test Online learning engine now! Our Exam 1Z0-804 Tutorial guide materials are high quality and high accuracy rate products. It is all about the superior concreteness and precision of the Exam 1Z0-804 Tutorial exam questions that helps.
If you are worry about the coming 1Z0-804 Reliable Practice Test Online exam, our 1Z0-804 Reliable Practice Test Online study materials will help you solve your problem. In order to promise the high quality of our 1Z0-804 Reliable Practice Test Online exam questions, our company has outstanding technical staff, and has perfect service system after sale. More importantly, our good 1Z0-804 Reliable Practice Test Online guide quiz and perfect after sale service are approbated by our local and international customers.
Oracle 1Z0-804 Reliable Practice Test Online - It can help a lot of people achieve their dream.
In this social-cultural environment, the 1Z0-804 Reliable Practice Test Online certificates mean a lot especially for exam candidates like you. To some extent, these 1Z0-804 Reliable Practice Test Online certificates may determine your future. With respect to your worries about the practice exam, we recommend our 1Z0-804 Reliable Practice Test Online preparation materials which have a strong bearing on the outcomes dramatically. For a better understanding of their features, please follow our website and try on them.
Now IT certification exam is one of the methods to inspect the employees' ability, but it is not so easy to is one of the way to IT certification exams. Generally, people who participate in the IT certification exam should choose a specific training course, and so choosing a good training course is the guarantee of success.
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
There are so many success examples by choosing our Splunk SPLK-1003 guide quiz, so we believe you can be one of them. More and more people choose Oracle ISACA CISA exam. And many of our cutomers use our CheckPoint 156-587 exam questions as their exam assistant and establish a long cooperation with us. Our Oracle EMC D-GAI-F-01 exam training materials contains questions and answers. All the preoccupation based on your needs and all these explain our belief to help you have satisfactory and comfortable purchasing services on the SAP C_TS422_2023 study guide.
Updated: May 28, 2022