OCJP 1Z0-851 questions and answers

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Oracle Java Standard Edition 6 Programmer Certified Professional Exam 1Z0-851
Exam Number/Code : 1Z0-851
Exam Name : Java Standard Edition 6 Programmer Certified Professional Exam
One year free update
Once failed,100% refund
Questions and Answers : 290Q&As
Update Time : 2012-3-1
Price :  $79.00

Free 1Z0-851 Demo Download
7.Given:
5.import java.util.*;
6.public class SortOf{
7.public static void main (String[]args){
8.ArrayList<Integer>a=new ArrayList<Integer>();
9.a.add(1);a.add(5);a.add(3);
11.Collections.sort(a);
12.a.add(2);
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13.Collections.reverse(a);
14.System.out.println(a);
15.}
16.
}
What is the result?
A.[1, 2,3,5]
B.[2, 1,3,5]
C.[2, 5,3,1]
D.[5, 3,2,1]
E.[1, 3,5,2]
F.Compilation fails.
G.An exception is thrown at runtime.
Answer:C

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Oracle OCJP 1Z0-851 Exam Topics
Section 4: Concurrency
Write code to define, instantiate, and start new threads using both java.lang.Thread and java.lang.Runnable.
Recognize the states in which a thread can exist, and identify ways in which a thread can transition from one state to another.
Given a scenario, write code that makes appropriate use of object locking to protect static or instance variables from concurrent access problems.

Section 2: Flow Control
Develop code that implements an if or switch statement; and identify legal argument types for these statements.
Develop code that implements all forms of loops and iterators, including the use of for, the enhanced for loop (for-each), do, while, labels, break, and continue; and explain the values taken by loop counter variables during and after loop execution.
Develop code that makes use of assertions, and distinguish appropriate from inappropriate uses of assertions.
Develop code that makes use of exceptions and exception handling clauses (try, catch, finally), and declares methods and overriding methods that throw exceptions.
Recognize the effect of an exception arising at a specified point in a code fragment. Note that the exception may be a runtime exception, a checked exception, or an error.

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