A quick quiz to point out some of the differences between Objective-C and Java.

1. Computer Science Large Practical:
Quick quiz on Objective-C
Stephen Gilmore
School of Informatics
Friday 19th October, 2012
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2. Question: Does this program print Yes, No or neither?
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3. Answer: it prints Yes.
. . . it prints Yes.
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4. Question: Does this program print Yes, No or neither?
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5. Answer: it prints No.
. . . it prints No.
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6. Question: Does this program print Yes, No or neither?
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7. Answer: neither, it throws an exception.
. . . neither, it throws an exception.
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8. Question: Does this program print Yes, No or neither?
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9. Answer: it prints No.
. . . it prints No.
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10. Question: Does this program print Yes, No or neither?
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11. Answer: it prints No, because we are using pointer equality
. . . it prints No, because we are using pointer equality
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12. Question: Does this program print Yes, No or neither?
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13. Answer: it prints Yes, because we are using content
equality
. . . it prints Yes, because we are using content equality
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14. Question: Does this program print Yes, No or neither?
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15. Answer: neither, it throws an exception because we forgot
to call init
. . . neither, it throws an exception because we forgot to call init
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