public interface Foo { int k = 4; /* Line 3 */ } Which three piece of codes are equivalent to line 3? 1 final int k = 4; 2 public int k = 4; 3 static int k = 4; 4 abstract int k = 4; 5 volatile int k = 4; 6 protected int k = 4;
| 1. | public interface Foo Which three piece of codes are equivalent to line 3? 1 final int k = 4; 2 public int k = 4; 3 static int k = 4; 4 abstract int k = 4; 5 volatile int k = 4; 6 protected int k = 4; |
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Answer: Option A Explanation: (1), (2) and (3) are correct. Interfaces can have constants, which are always implicitly public, static, and final. Interface constant declarations of public, static, and final are optional in any combination. |
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