Given the following type and reference declarations, which assignment is legal? Select the one correct answer. (a)
Question:
Given the following type and reference declarations, which assignment is legal?
Select the one correct answer.
(a) obj2 = obj1;
(b) obj3 = obj1;
(c) obj3 = obj2;
(d) I1 a = obj2;
(e) I1 b = obj3;
(f) I2 c = obj1;
Transcribed Image Text:
// Type declarations: interface Il {} interface 12 {} class C1 implements I1 {} class C2 implements 12 {} class C3 extends C1 implements 12 {} // Reference declarations: C1 obj1 = null; C2 obj2 = null; C3 obj3 = null;
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e Only the assignment I1 b obj3 is valid The assignment is allowed since C3 extends ...View the full answer
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Related Book For
Programmers Guide To Java SE 8 Oracle Certified Associate OCA
ISBN: 9780132930215
1st Edition
Authors: Khalid Mughal, Rolf Rasmussen
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