If you purchase our 1Z0-804 Valid Braindumps Files training dumps you can spend your time on more significative work. We have experienced education technicians and stable first-hand information to provide you with high quality & efficient 1Z0-804 Valid Braindumps Files training dumps. If you are still worried about your exam, our exam dumps may be your good choice. In addition, the 1Z0-804 Valid Braindumps Files 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 Valid Braindumps Files 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. When you visit our product page, you will find the detail information about 1Z0-804 Valid Braindumps Files practice test.
Java and Middleware 1Z0-804 As long as the road is right, success is near.
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 Valid Braindumps Files study dump. Using Exam 1Z0-804 Simulator Free 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 Valid Braindumps Files 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 Valid Braindumps Files 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 Valid Braindumps Files exam questions.
Oracle 1Z0-804 Valid Braindumps Files - This certification gives us more opportunities.
If you are nervous on your 1Z0-804 Valid Braindumps Files exam for you always have the problem on the time-schedule or feeling lack of confidence on the condition that you go to the real exam room. Our Software version of 1Z0-804 Valid Braindumps Files study materials will be your best assistant. With the advantage of simulating the real exam environment, you can get a wonderful study experience with our 1Z0-804 Valid Braindumps Files exam prep as well as gain the best pass percentage.
Therefore, modern society is more and more pursuing efficient life, and our 1Z0-804 Valid Braindumps Files exam materials are the product of this era, which conforms to the development trend of the whole era. It seems that we have been in a state of study and examination since we can remember, and we have experienced countless tests, including the qualification examinations we now face.
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
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: 3
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: 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
Splunk SPLK-1005 - Our online resources and events enable you to focus on learning just what you want on your timeframe. VMware 5V0-63.23 - If you make up your mind, choose us! When you purchase Fortinet FCSS_ADA_AR-6.7 exam dumps from Omgzlook, you never fail Fortinet FCSS_ADA_AR-6.7 exam ever again. SAP C-C4H51-2405 - Of course, their service attitude is definitely worthy of your praise. Amazon SAA-C03 - Also, we offer you with 24/7 customer services for any inconvenience.
Updated: May 28, 2022