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Exam 1z0-809 topic 1 question 174 discussion

Actual exam question from Oracle's 1z0-809
Question #: 174
Topic #: 1
[All 1z0-809 Questions]

Given:

Which option fails?

  • A. Foo<String, Integer> mark = new Foo<Object, Object> ("Steve", 100);
  • B. Foo<String, String> pair = Foo.<String>twice ("Hello World!");
  • C. Foo<Object, Object> percentage = new Foo<Object, Object>("Steve", 100);
  • D. Foo<String, String> grade = new Foo <> ("John", "A");
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Suggested Answer: C 🗳️
by jduarte at Feb. 6, 2021, 12:38 p.m.

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steefaand
5 months, 4 weeks ago
Selected Answer: A
A is correct. Can't have different types on left and right side if not using super/extends on left side.
upvoted 1 times
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duydn
10 months, 2 weeks ago
Selected Answer: A
Answer is A. <Object, Object> cannot cast to <String, Integer>
upvoted 1 times
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WilsonKKerll
2 years, 4 months ago
Answer is A. Tested.
upvoted 1 times
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Svetleto13
3 years, 2 months ago
A,tested
upvoted 1 times
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jduarte
3 years, 5 months ago
Answer A. Tested Type mismatch: cannot convert from Foo<Object,Object> to Foo<String,Integer>
upvoted 4 times
...
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