Oracle 1Z0-805 actual questions Passtcert

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Share some OCP 1Z0-805 exam questions and answers below.
Given the code fragment: 
dataFormat df; 
Which statement defines a new DataFormat object that displays the default date format for the UK Locale? 
A. df = DateFormat.getDateInstance (DateFormat.DEFAULT, Locale(UK)); 
B. df = DateFormat.getDateInstance (DateFormat.DEFAULT, UK); 
C. df = DateFormat.getDateInstance (DateFormat.DEFAULT, Locale.UK); 
D. df = new DateFormat.getDataInstance (DataFormat.DEFAULT, Locale.UK); 
E. df = new DateFormat.getDateInstance (DateFormat.DEFAULT, Locale(UK)); 
Answer: C

Given the code fragment: 
List pList = new CopyOnWriteArrayList();
Which statement is true?
A. Read access to the List should be synchronized.
B. Write access to the List should be synchronized.
C. Person objects retrieved from the List are thread-safe.
D. A Person object retrieved from the List is copied when written to.
E. Multiple threads can safely delete Person objects from the List.
Answer: C

What design pattern does the Drivermanager.getconnection () method characterize?
A. DAO
B. Factory
C. Singleton
D. composition
Answer: B

Which two statements are true about the walkFileTree method of the files class?
A. The file tree traversal is breadth-first with the given FileVisitor invoked for each file encountered.
B. If the file is a directory, and if that directory could not be opened, the postVisitFileFailed method is invoked with the I/O exception.
C. The maxDepth parameter’s value is the maximum number of directories to visit.
D. By default, symbolic links are not automatically followed by the method.
Answer: C,D

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