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Oracle

1Z0-851 · Question #243

Given: interface DoStuff2 { float getRange(int low, int high); } interface DoMore { float getAvg(int a, int b, int c); } abstract class DoAbstract implements DoStuff2, DoMore { } class DoStuff…

The correct answer is A. The file will compile without error. See the full explanation below for the reasoning.

Question

Given: interface DoStuff2 { float getRange(int low, int high); } interface DoMore { float getAvg(int a, int b, int c); } abstract class DoAbstract implements DoStuff2, DoMore { } class DoStuff implements DoStuff2 { public float getRange(int x, int y) { return 3.14f; } } interface DoAll extends DoMore { float getAvg(int a, int b, int c, int d); } What is the result?

Options

  • AThe file will compile without error.
  • BCompilation fails. Only line 7 contains an error.
  • CCompilation fails. Only line 12 contains an error.
  • DCompilation fails. Only line 13 contains an error.
  • ECompilation fails. Only lines 7 and 12 contain errors.
  • FCompilation fails. Only lines 7 and 13 contain errors.
  • GCompilation fails. Lines 7, 12, and 13 contain errors.

How the community answered

(15 responses)
  • A
    73% (11)
  • B
    7% (1)
  • E
    7% (1)
  • F
    13% (2)

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