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Computer Engineering
QUESTION 21 Given: public interface TestInterface { boolean errorState(); } Which methods are correct? (Choose all that apply.) A. public class MyClass implements TestInterface { public boolean errorState() { return false; } } B. public class My implements TestInterface { private boolean errorState() { return false; } } C. public class MyClass implements TestInterface { public void errorState() { } } D. public class MyClass extend TestInterface { public boolean errorState() { return false; } }

QUESTION 21 Given: public interface TestInterface { boolean errorState(); } Which methods are correct? (Choose all that apply.) A. public class MyClass implements TestInterface { public boolean errorState() { return false; } } B. public class My implements TestInterface { private boolean errorState() { return false; } } C. public class MyClass implements TestInterface { public void errorState() { } } D. public class MyClass extend TestInterface { public boolean errorState() { return false; } }

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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QUESTION 21 Given: public interface TestInterface { boolean errorState(); } Which methods are correct? (Choose all that apply.) A. public class MyClass implements TestInterface { public boolean errorState() { return false; } } B. public class MyC implements TestInterface { private boolean errorState() { return false; } } C. public class MyClass implements TestInterface { public void errorState() { } } D. public class MyClass extend TestInterface { public boolean errorState() { return false; } }
Transcribed Image Text:QUESTION 21 Given: public interface TestInterface { boolean errorState(); } Which methods are correct? (Choose all that apply.) A. public class MyClass implements TestInterface { public boolean errorState() { return false; } } B. public class MyC implements TestInterface { private boolean errorState() { return false; } } C. public class MyClass implements TestInterface { public void errorState() { } } D. public class MyClass extend TestInterface { public boolean errorState() { return false; } }
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