which of the following is correct? public class Left{ public Left x; public void foo(){ System.out.println("Left"); } public class Middle extends Left{ public Right y; public void foo(){ System.out.println("Middle"); } } public class Right{ public Middle z;

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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which of the following is correct?
public class Left{
public Left x;
public void foo(){
System.out.println("Left");
}
public class Middle extends Left{
public Right y;
public void foo(){
System.out.println("Middle");
}
public class Right{
public Middle z;
}
Select one:
O Middle is-a Left and Middle has-a Right.
O Left is-an Object and Right is-a Middle.
O Left has-a Right and Middle has-a Left.
O None of these options
Transcribed Image Text:which of the following is correct? public class Left{ public Left x; public void foo(){ System.out.println("Left"); } public class Middle extends Left{ public Right y; public void foo(){ System.out.println("Middle"); } public class Right{ public Middle z; } Select one: O Middle is-a Left and Middle has-a Right. O Left is-an Object and Right is-a Middle. O Left has-a Right and Middle has-a Left. O None of these options
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