All intricate points of our 1Z0-804 New Dumps Files study guide will not be challenging anymore. They are harbingers of successful outcomes. And our website has already became a famous brand in the market because of our reliable 1Z0-804 New Dumps Files exam questions. 1Z0-804 New Dumps Files study guide not only apply to students, but also apply to office workers; not only apply to veterans in the workplace, but also apply to newly recruited newcomers. 1Z0-804 New Dumps Files guide torrent uses a very simple and understandable language, to ensure that all people can read and understand. So our 1Z0-804 New Dumps Files latest dumps are highly effective to make use of.
Java and Middleware 1Z0-804 But even the best people fail sometimes.
And our 1Z0-804 - Java SE 7 Programmer II Exam New Dumps Files study braindumps deliver the value of our services. You really need our Practice 1Z0-804 Exams Free practice materials which can work as the pass guarantee. Nowadays, the certification has been one of the criteria for many companies to recruit employees.
What is more, we offer customer services 24/7. Even if you fail the exams, the customer will be reimbursed for any loss or damage after buying our 1Z0-804 New Dumps Files guide dump. One decision will automatically lead to another decision, we believe our 1Z0-804 New Dumps Files guide dump will make you fall in love with our products and become regular buyers.
Oracle 1Z0-804 New Dumps Files - Just have a try and you will love them!
After the user has purchased our 1Z0-804 New Dumps Files learning materials, we will discover in the course of use that our product design is extremely scientific and reasonable. Details determine success or failure, so our every detail is strictly controlled. For example, our learning material's Windows Software page is clearly, our 1Z0-804 New Dumps Files Learning material interface is simple and beautiful. There are no additional ads to disturb the user to use the 1Z0-804 New Dumps Files learning material. Once you have submitted your practice time, 1Z0-804 New Dumps Files learning Material system will automatically complete your operation.
If you believe in our products this time, you will enjoy the happiness of success all your life Our 1Z0-804 New Dumps Files learning quiz is the accumulation of professional knowledge worthy practicing and remembering, so you will not regret choosing our 1Z0-804 New Dumps Files study guide.
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
Then windows software of the SAP C_C4H51_2405 exam questions, which needs to install on windows software. Microsoft AZ-140 - You will get satisfied answers after consultation. Dell D-PDM-A-01 - The strength of our the IT elite team will make you feel incredible. Our Amazon DOP-C02 learning guide allows you to study anytime, anywhere. Senior IT experts in the Omgzlook constantly developed a variety of successful programs of passing Oracle certification EMC D-PCR-DY-23 exam, so the results of their research can 100% guarantee you Oracle certification EMC D-PCR-DY-23 exam for one time.
Updated: May 28, 2022