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Q11. Which declaration initializes a boolean variable? 

A. boolean h = 1; 

B. boolean k = 0; 

C. boolean m = null; 

D. boolean j = (1 < 5); 

Answer:


Q12. The protected modifier on a Field declaration within a public class means that the field 

______________. 

A. Cannot be modified 

B. Can be read but not written from outside the class 

C. Can be read and written from this class and its subclasses only within the same 

package 

D. Can be read and written from this class and its subclasses defined in any package 

Answer:


Q13. Given: 

Class A { } 

Class B { } 

Interface X { } 

Interface Y { } 

Which two definitions of class C are valid? 

A. Class C extends A implements X { } 

B. Class C implements Y extends B { } 

C. Class C extends A, B { } 

D. Class C implements X, Y extends B { } 

E. Class C extends B implements X, Y { } 

Answer: AE 


Q14. What is the result if the integer aVar is 9? 

A. 10 Hello world! 

B. 10 Hello universe! 

C. 9 Hello world! 

D. Compilation fails. 

Answer:


Q15. Given: 

What is the result? 

A. Compilation fails 

B. The code compiles, but does not execute. 

C. Paildrome 

D. Wow 

E. Mom 

Answer:


Q16. 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. 

Answer:


Q17. Given the code fragment: 

Which code fragment prints blue, cyan, ? 

A. Option A 

B. Option B 

C. Option C 

D. Option D 

Answer:


Q18. Which three are bad practices? 

A. Checking for ArrayIndexoutofBoundsException 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 FileNotFoundException to inform a user that a filename entered is not valid 

D. Checking for ArrayIndexoutofBoundsException 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 

Answer: ABD 


Q19. Given the code fragment:

A. 20 

B. 25 

C. 29 

D. Compilation fails 

E. An Array Index Out Of Bounds Exception is thrown at runtime 

Answer:


Q20. Given the code fragment: 

System.out.printIn ("Result: " +3+5); 

System.out.printIn ("Result: " + (3+5)); 

What is the result? 

A. Result: 8 

Result: 8 

B. Result: 35 

Result: 8 

C. Result: 8 

Result: 35 

D. Result: 35 

Result: 35 

Answer: