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READ Free Dumps For Oracle- 1z0-851





Question ID 22662

Given:
1. interface TestA { String toString(); }
2. public class Test {
3. public static void main(String[] args) {
4. System.out.println(new TestA() {

5. public String toString() { return "test"; }
6. });
7. }
8. }
What is the result?

Option A

test

Option B

null

Option C

An exception is thrown at runtime.

Option D

Compilation fails because of an error in line 1.

Option E

Compilation fails because of an error in line 4.

Option F

Compilation fails because of an error in line 5.

Correct Answer A
Explanation


Question ID 22663

Given:
11. public interface A { public void m1(); }
12.
13. class B implements A { }
14. class C implements A { public void m1() { } }
15. class D implements A { public void m1(int x) { } }
16. abstract class E implements A { }
17. abstract class F implements A { public void m1() { } }
18. abstract class G implements A { public void m1(int x) { } }
What is the result?

Option A

Compilation succeeds.

Option B

Exactly one class does NOT compile.

Option C

Exactly two classes do NOT compile.

Option D

Exactly four classes do NOT compile.

Option E

Exactly three classes do NOT compile.

Correct Answer C
Explanation

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