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Q11. given:
A. ns = 50 S = 125
ns = 125 S = 125
ns = 100 S = 125
B. ns = 50 S = 125
ns = 125 S = 125
ns = 0 S = 125
C. ns = 50 S = 50
ns = 125 S = 125
ns = 100 S = 100
D. ns = 50 S = 50
ns = 125 S = 125
ns = 0 S = 125
Answer: B
Q12. Given the code fragment:
Q13. You are writing a method that is declared not to return a value. Which two are permitted in
the method body?
A. omission of the return statement
B. return null;
C. return void;
D. return;
Answer: AD
Q14. Given:
What code should be inserted?
A. Option A
B. Option B
C. Option C
D. Option D
E. Option E
F. Option F
Answer: C
Q15. Which two statements are true?
C. An interface CANNOT be extended by another interface.
D. An interface can be extended by an abstract class.
E. An abstract class can be extended by a concrete class.
F. An abstract class CANNOT be extended by an abstract class.
Answer: AE
Q16. What is the result?
A. Valid
B. Not valid
C. Compilation fails
D. An IllegalArgumentException is thrown at run time
Answer: C
Q17. public class MyFor {
public static void main(String[] args) {
for (int ii = 0; ii < 4; ii++) {
System.out.println("ii = "+ ii);
ii = ii +1;
}
}
}
What is the result?
A. ii = 0
ii = 2
B. ii = 0
ii = 1
ii = 2
ii = 3
C. ii =
D. Compilation fails.
Answer: A
Q18. Given the code in a file Traveler.java:
And the commands:
Javac Traveler.java
Java Traveler Java Duke
What is the result?
A. Happy Journey! Duke
B. Happy Journey! Java
C. An exception is thrown at runtime
What is the result?
D. The program fails to execute due to a runtime error
Answer: D
Q19. Given:
What is the result?
A. 11, 21, 31, 11, 21, 31
B. 11, 21, 31, 12, 22, 32
C. 12, 22, 32, 12, 22, 32
D. 10, 20, 30, 10, 20, 30
Answer: D
Q20. Given:
What is the result?
A. x: 1 y: 2
B. 3 y: 4
C. x: 0 y: 0
D. 3 y: 4
E. x: 1 y: 2
F. 0 y: 0
G. x: 0 y: 0
H. 0 y: 0
Answer: C