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Vendor: Oracle
Certifications: Java and Middleware
Exam Name: Java SE 7 Programmer I
Exam Code: 1Z0-803
Total Questions: 216 Q&As
1Z0-803 dumps
QUESTION 1
A method doSomething () that has no exception handling code is modified to trail a method that throws a checked exception. Which two modifications, made independently, will allow the program to compile?
A. Catch the exception in the method doSomething().
B. Declare the exception to be thrown in the doSomething() method signature.
C. Cast the exception to a RunTimeException in the doSomething() method.
D. Catch the exception in the method that calls doSomething().
Correct Answer: AB

QUESTION 2
Given:
1Z0-803 dumps
Which statement, when inserted into line 5, is valid change?
A. asc = sc;
B. sc = asc;
C. asc = (object) sc;
D. asc = sc.clone ()
Correct Answer: B

QUESTION 3
Given a java source file:
1Z0-803 dumps
What changes will make this code compile? 1Z0-803 dumps (Select Two)
A. Adding the public modifier to the declaration of class x
B. Adding the protected modifier to the x() constructor
C. Changing the private modifier on the declaration of the one() method to protected
D. Removing the Y () constructor
E. Removing the private modifier from the two () method
Correct Answer: CE

QUESTION 4
Given the code fragment:
String h1 = “Bob”;
String h2 = new String (“Bob”);
What is the best way to test that the values of h1 and h2 are the same?
A. if (h1 = = h2)
B. if (h1.equals(h2))
C. if (h1 = = h2)
D. if (h1.same(h2))
Correct Answer: B

QUESTION 5
Which two are valid declarations of a two-dimensional array?
A. int [] [] array2D;
B. int [2] [2] array2D;
C. int array2D [];
D. int [] array2D [];
E. int [] [] array2D [];
Correct Answer: AD

QUESTION 6
Which code fragment is illegal?
1Z0-803 dumps
A. Option A
B. Option B
C. Option C
D. Option D
Correct Answer: D

QUESTION 7
Which two may precede the word `class’ in a class declaration?
A. local
B. public
C. static
D. volatile
E. synchronized
Correct Answer: BC

QUESTION 8
Which three are bad practices? 1Z0-803 dumps
A. Checking for Array Index out of Bounds Exception when iterating through an array to determine when all elements have been visited
B. Checking for Error and. If necessary, restarting the program to ensure that users are unaware problems
C. Checking for File Not Found Exception to inform a user that a filename entered is not valid
D. Checking for Array Index out of Bounds Exception and ensuring that the program can recover if one occur
E. Checking for an IOException and ensuring that the program can recover if one occurs
Correct Answer: ABD

QUESTION 9
Given:
1Z0-803 dumps
What is the result?
A. There is no output
B. d is output
C. A StringIndexOutOfBoundsException is thrown at runtime
D. An ArrayIndexOutOfBoundsException is thrown at runtime
E. A NullPointException is thrown at runtime
F. A StringArrayIndexOutOfBoundsException is thrown at runtime
Correct Answer: C

QUESTION 10
Given:
1Z0-803 dumps
What three modifications, made independently, made to class greet, enable the code to compile and run?
A. line 6 replaced with handy.dandy.keystroke stroke = new KeyStroke ( );
B. line 6 replaced with handy.*.KeyStroke = new KeyStroke ( );
C. line 6 replaced with handy.dandy.KeyStroke Stroke = new handy.dandy.KeyStroke();
D. import handy.*; added before line 1
E. import handy.dandy.*; added after line 1
F. import handy.dandy,KeyStroke; added after line 1
G. import handy.dandy.KeyStroke.typeException(); added before line 1
Correct Answer: CEF

QUESTION 11
Which three are advantages of the Java exception mechanism? 1Z0-803 dumps
A. Improves the program structure because the error handling code is separated from the normal program function
B. Provides a set of standard exceptions that covers all the possible errors
C. Improves the program structure because the programmer can choose where to handle exceptions
D. Improves the program structure because exceptions must be handled in the method in which they occurred
E. allows the creation of new exceptions that are tailored to the particular program being
Correct Answer: ACE

QUESTION 12
A method is declared to take three arguments. A program calls this method and passes only two arguments. What is the result?
A. Compilation fails.
B. The third argument is given the value null.
C. The third argument is given the value void.
D. The third argument is given the value zero.
E. The third argument is given the appropriate false value for its declared type.
F. An exception occurs when the method attempts to access the third argument.
Correct Answer: A

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