Object Oriented Programming (OOPs)

Question : 35 of 72

Marks: +1, -0

Given:

1. interface DoStuff2 {
2.   float getRange(int low, int high); }
3.
4. interface DoMore {
5.   float getAvg(int a, int b, int c); }
6.
7. abstract class DoAbstract implements DoStuff2, DoMore { }
8.
9. class DoStuff implements DoStuff2 {
10.   public float getRange(int x, int y) { return 3.14f; } }
11.
12. interface DoAll extends DoMore {
13.   float getAvg(int a, int b, int c, int d); }

What is the result?

The file will compile without error
Compilation fails. Only line 7 contains an error.
Compilation fails. Only line 12 contains an error.
Compilation fails. Only line 13 contains an error
Compilation fails. Only lines 7 and 12 contain errors.
Compilation fails. Only lines 7 and 13 contain errors.
Compilation fails. Lines 7, 12, and 13 contain errors.

Validate

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