Answer: instanceof and class hierarchy : Questions « Operators « SCJP






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C. D. E. F.

References to X and Y objects can be cast to Z and W objects. 
References to Z objects can be cast to W objects.








2.14.Questions
2.14.1.What results from running the following code?
2.14.2.Answer: byte binary calculation
2.14.3.What results from attempting to compile and run the following code?
2.14.4.Answer: compile
2.14.5.What does the following code do? (if (i != null & i.intValue() == 5))
2.14.6.Answer: & and condition statements
2.14.7.What is the value of 111 % 13?
2.14.8.Answer: value of 111 % 13
2.14.9.What is the value of 9 + 8 % 7 + 6?
2.14.10.Answer: value of 9 + 8 % 7 + 6
2.14.11.What is the value of y outputing from System.out.println()?
2.14.12.Answer: post-increment
2.14.13.What is the value returned by "abcd" instanceof Object?
2.14.14.Answer: "abcd" instanceof Object
2.14.15.What is the value of 8 | 9 & 10 ^ 11?
2.14.16.Answer: 8 | 9 & 10 ^ 11
2.14.17.What is the output(n & n + 1 | n + 2 ^ n + 3)?
2.14.18.Answer: n & n + 1 | n + 2 ^ n + 3
2.14.19.What is the value of -31 >>> 5 >> 5?
2.14.20.Answer: -31 >>> 5 >> 5
2.14.21.What is the value displayed?
2.14.22.Answer: (b1 | b2 & b3 ^ b4)
2.14.23.What is displayed by the following program?
2.14.24.Answer: & vs &&
2.14.25.What is the output displayed?
2.14.26.Answer: String concatenation and assignment
2.14.27.Which is the output from the following program?
2.14.28.Answer: byte and double casting
2.14.29.What is the result of the expression 5.4 + "3.2"?
2.14.30.Answer: 5.4 + "3.2"
2.14.31.What is the result of the following program?
2.14.32.Answer: (i | j) % (i & j)
2.14.33.Based on the following code which of the following are true?
2.14.34.Answer: instanceof and class hierarchy
2.14.35.A reference to an array can be cast to a reference to an Object(True/False).
2.14.36.Answer: array object casting
2.14.37.A reference to an array can be cast to a reference to a Cloneable(True/False).
2.14.38.Answer: array object and Cloneable