[2017-NEW!]First-hand Oracle 1Z0-804 Dumps and Get1Z0-804 PDF Version in An Easy Way

Best Way To Pass Oracle 1Z0-804 Dumps :

Only to find ways to success, do not make excuses for failure. To pass the Oracle 1Z0-804 Test Questions, in fact, is not so difficult, the key is what method you use. Pass4itsure’s Oracle 1Z0-804 dumps is a good choice. It will help us to pass the exam successfully. This is the best shortcut to success. Everyone has the potential to succeed, the key is what kind of choice you have.

Exam Code: 1Z0-804
Exam Name: Java SE 7 Programmer II Exam
Updated: Feb 12, 2017
Q&As: 150
>> Exam Information:https://www.pass4itsure.com/1z0-804.html
1z0-804 dumpsPrintable PDF Google Drive:https://drive.google.com/open?id=0BwxjZr-ZDwwWQ25UUGNCaFhETUU

1Z0-804 dumps

If you buy the Pass4itsure’s products, we will not only spare no effort to help you pass the certification exam, but also provide a free update and upgrade service. If the official change the outline of the certification exam, we will notify customers immediately. If we have any updated version of test software, it will be immediately pushed to customers. Pass4itsure can promise to help you succeed to pass your first Oracle certification 1z0-804 dumps Training Materials.

1z0-804 dumps Question No : 1

Given the code fragment:
DataFormat df;
Which statement defines a new Dateformat object that displays the default date format for
the UK Locale?
A. df = DateFormat.getdatDataInstance (DateFormat.DEFAULT, Locale (UK));
B. df = DateFormat.getdatDataInstance (DateFormat.DEFAULT, UK);
C. df = DateFormat.getdatDataInstance (DateFormat.DEFAULT, Locale.UK);
D. df = new DateFormat.getdatDataInstance (DateFormat.DEFAULT, Locale.UK);
E. df = new DateFormat.getdatDataInstance (DateFormat.DEFAULT, Locale (UK));
Answer: C
Explanation: The UK locale is constructed with Locale.UK.
To format a date for a different Locale, specify it in the call to getDateInstance().
DateFormat df = DateFormat.getDateInstance(DateFormat.LONG, Locale.FRANCE);
Note: getDateInstance(int style, Locale aLocale)
Gets the date formatter with the given formatting style for the given locale.
Reference: Class DateFormat
public class DoubleThread {
public static void main(String[] args) {
Thread t1 = new Thread() {
public void run() {

1z0-804 dumps Question No : 2

Thread t2 = new Thread(t1); // Line 9
} }
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.

1z0-804 dumps Question No : 3

import java.util.*;
public class AccessTest {
public static void main(String[] args) {
Thread t1 = new Thread(new WorkerThread());
Thread t2 = new Thread(new WorkerThread());
t1.start(); t2.start; // line1
class WorkPool {
static ArrayList<Integer> list = new ArrayList<>(); // line2
public static void addItem() { // line3
list.add(1); // Line4
} }
class WorkerThread implements Runnable {
static Object bar = new Object ();
public void run() { //line5
for (int i=0; i<5000;i++) WorkPool.addItem(); // line6
} }
Which of the four are valid modifications to synchronize access to the valid list between
threads t1 and t2?
A. Replace line 1 with:
Synchronized (t2) (t1.start();) synchronized(t1) (t2.start();)
B. Replace Line 2 with:
static CopyWriteArrayList<Integer> list = new CopyWriteArrayList<>();
C. Replace line 3 with:
synchronized public static void addItem () {
D. Replace line 4 with:
synchronized (list) (list.add(1);)
E. Replace line 5 with:
Synchronized public void run () {
F. replace line 6 with:
Synchronized (this) {for (in i = 0, i<5000, i++) WorkPool.addItem(); }
G. Replace line 6 with:
synchronized (bar) {for (int i= 0; i<5000; i++) WorkPool.addItem(); }
Answer: A,B,C,F
Explanation: B: CopyOnWriteArrayList
A thread-safe variant of ArrayList in which all mutative operations (add, set, and so on) are

implemented by making a fresh copy of the underlying array.
This is ordinarily too costly, but may be more efficient than alternatives when traversal
operations vastly outnumber mutations, and is useful when you cannot or don’t want to
synchronize traversals, yet need to preclude interference among concurrent threads. The
“snapshot” style iterator method uses a reference to the state of the array at the point that
the iterator was created. This array never changes during the lifetime of the iterator, so
interference is impossible and the iterator is guaranteed not to throw
* The Java programming language provides two basic synchronization idioms:
synchronized methods and synchronized statements.
* To make a method synchronized, simply add the synchronized keyword to its declaration:
public class SynchronizedCounter {
private int c = 0;
public synchronized void increment() {
* A way to create synchronized code is with synchronized statements. Unlike synchronized
methods, synchronized statements must specify the object that provides the intrinsic lock:
For example:
public void addName(String name) {
synchronized(this) {
lastName = name;
In this example, the addName method needs to synchronize changes to lastName and
nameCount, but also needs to avoid synchronizing invocations of other objects’ methods.
Without synchronized statements, there would have to be a separate, unsynchronized
method for the sole purpose of invoking nameList.add.
Reference: The Java Tutorial, Intrinsic Locks and Synchronization

Question No : 4

Sam has designed an application. It segregates tasks that are critical and executed
frequently from tasks that are non critical and executed less frequently. He has prioritized
these tasks based on their criticality and frequency of execution. After close scrutiny, he
finds that the tasks designed to be non critical are rarely getting executed.
From what kind of problem is the application suffering?
A. race condition
B. starvation
C. deadlock
D. livelock
Answer: C
Explanation: Starvation describes a situation where a thread is unable to gain regular
access to shared resources and is unable to make progress. This happens when shared
resources are made unavailable for long periods by “greedy” threads. For example,
suppose an object provides a synchronized method that often takes a long time to return. If
one thread invokes this method frequently, other threads that also need frequent
synchronized access to the same object will often be blocked.
Reference: The Java Tutorial, Starvation and Livelock

1z0-804 dumps Question No : 5

Class Employee {
public int checkEmail() {/* . . . */}
public void sendEmail (String email) {/* . . . */}
public Boolean validDateEmail(){/* . . . */}
public void printLetter (String letter) {/* . . . */}
Which is correct?
A. Employee takes advantage of composition.
B. Employee “has-an” Email.
C. Employee “is-a” LetterPrinter.
D. Employee has low cohesion.
Answer: D
Explanation: The relationship between Employee and e-mail is poorly implemented here.
There is low cohesion.
Low cohesion is associated with undesirable traits such as being difficult to maintain,
difficult to test, difficult to reuse, and even difficult to understand.
Cohesion is decreased if:
The functionalities embedded in a class, accessed through its methods, have little in
Methods carry out many varied activities, often using coarsely-grained or unrelated sets of
Disadvantages of low cohesion (or “weak cohesion”) are:
Increased difficulty in understanding modules.
Increased difficulty in maintaining a system, because logical changes in the domain affect
multiple modules, and because changes in one module require changes in related
Increased difficulty in reusing a module because most applications won’t need the random
set of operations provided by a module.
Reference: Cohesion (computer science)

1Z0-804 dumps

Significance of Oracle 1Z0-804 Certification

Oracle 1Z0-804 Exams Practice Exam – 1Z0-804 Exams your IT professional ability will be approved by a lot of IT company, but also provides a comprehensive 1Z0-804 Exam after-sales service, 1Z0-804 Exams is more trustworthy, So Oracle 1Z0-804 Exams is also a very popular IT certification exam, 1Z0-804 Exams so as to guarantee to pass your exam, 1Z0-804 Exams Our training materials are the latest study materials which bring by experts, we can make ensure you to 100% pass your first time to attend Oracle 1Z0-804 Exams, you have set the first foot on the peak of the IT industry 1Z0-804 Exams and the way to your dream is one step closer, which save their valuable 1Z0-804  pdf time and energy, 1Z0-804 Exams is absolute your best choice, People around the world prefer 1Z0-804 exams certification to make their careers more strengthened and successful, and use it to prepare for 1Z0-804 Exams the exam is an adventure

Best Way To Pass Oracle 1Z0-804 :

Certifications play an inevitable role in accomplishing a virtuous employment. Even though its acquaintance is somewhat intricate, yet their noteworthiness can’t be contradicted. To become successful in the Oracle 1Z0-804  vce Java SE 7 Programmer II Exam, the competitors should have to endeavor continuously.

The 1Z0-804 dumps provide anyone almost everything you simply must take ones Java SE 7 Programmer II Oracle Test questions. The particular Computer Technology Industry Association specifics are reviewed as well as that is generated by Professional Documentation Specialists who’re continually utilizing sector expertise to generate correct, and realistic. Our Product or service will help you go away examination with your try, and as well save your valuable time.

Best It Certifications to HAVE: http://www.work2you.org/2017-latest-updated-download-free-cisco-300-135-dumps/