And you can free donwload the demos to have a look. According to personal propensity and various understanding level of exam candidates, we have three versions of 1Z0-804 Test Blueprint study guide for your reference. They are the versions of the PDF, Software and APP online. So every year a large number of people take 1Z0-804 Test Blueprint tests to prove their abilities. But even the best people fail sometimes. Our 1Z0-804 Test Blueprint real questions can offer major help this time.
Java and Middleware 1Z0-804 We provide free PDF demo for each exam.
Omgzlook Oracle 1Z0-804 - Java SE 7 Programmer II Exam Test Blueprint exam training materials is a reliable product. Trying to download the free demo in our website and check the accuracy of Practice 1Z0-804 Exam Online test answers and questions. Getting certification will be easy for you with our materials.
Are you worried about how to passs the terrible Oracle 1Z0-804 Test Blueprint exam? Do not worry, With Omgzlook's Oracle 1Z0-804 Test Blueprint exam training materials in hand, any IT certification exam will become very easy. Omgzlook's Oracle 1Z0-804 Test Blueprint exam training materials is a pioneer in the Oracle 1Z0-804 Test Blueprint exam certification preparation.
Oracle 1Z0-804 Test Blueprint - Success is has method.
Our 1Z0-804 Test Blueprint real dumps has received popular acceptance worldwide with tens of thousands of regular exam candidates who trust our proficiency. Up to now, the passing rate is 98 to 100 percent. What made our 1Z0-804 Test Blueprint study guide so amazing? The answer that we only supply the latest and valid 1Z0-804 Test Blueprint exam braindumps for our customers and first-class after-sales services come after the first-class 1Z0-804 Test Blueprint learning engine. We're also widely praised by our perfect services.
With this certification you will not be eliminated, and you will be a raise. Some people say that to pass the Oracle 1Z0-804 Test Blueprint exam certification is tantamount to 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
We regard the customer as king so we put a high emphasis on the trust of every users, therefore our security system can protect you both in payment of SAP C_ARSUM_2404 guide braindumps and promise that your computer will not be infected during the process of payment on our SAP C_ARSUM_2404 study materials. VMware 3V0-42.23 - So, it can save much time for us. You can contact us at any time if you have any difficulties in the purchase or trial process of our HP HPE7-M01 exam dumps. Omgzlook HP HPE7-M01 braindump has a high hit rate. To ensure excellent score in the exam, Network Appliance NS0-304 braindumps are the real feast for all exam candidates.
Updated: May 28, 2022