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Oracle

1Z0-851 · Question #231

1Z0-851 Question #231: Real Exam Question with Answer & Explanation

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Question

Given: class One { public One foo() { return this; } } class Two extends One { public One foo() { return this; } } class Three extends Two { // insert method here } Which two methods, inserted individually, correctly complete the Three class? (Choose two.)

Options

  • Apublic void foo() {}
  • Bpublic int foo() { return 3; }
  • Cpublic Two foo() { return this; }
  • Dpublic One foo() { return this; }
  • Epublic Object foo() { return this; }

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