What would be printed out by System.out.println(m.toString())

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
Problem 1PE
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What would be printed out by System.out.println(m.toString())

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public interface Person {
String getName();
int getID();
String getCategory();
}
public class Member implements Person {
public String toString() {
return "Member";
}
}
public class BoardMember extends Member {
public String toString() {
}
}
public abstract class Student implements Person {
}
public class GradStudent extends Student {
}
public class UndergradStudent extends Student {
}
Given the following interfaces and classes,
Object u1= new GradStudent ();
Legal or Illegal
Narrowing, Widening or Nei
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1:
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public class UndergradStudent extends Student {
}
2
Object u1= new GradStudent();
Legal or Illegal
Narrowing, Widening or Neither
Board Member b = new Member();
Legal or Illegal
Narrowing, Widening or Neither
@
GradStudent g1 = new Student ();
Legal or Illegal
Narrowing, Widening or Neither
Student s1 = new UndergradStudent ();
Legal or Illegal
Narrowing, Widening or Neither
UndergradStudent u2 = new Member();
Legal or Illegal
Narrowing, Widening or Neither
Person p2 = new GradStudent ();
Legal or Illegal
Narrowing, Widening or Neither
Member m2 new Person();
Legal or Illegal
Narrowing, Widening or Neither.
For the eight Java statements below, identify each of the following statements as legal or illegal, and whether legal or not, state whether it represents a "narrow
ing," or "widening"
conversion, or neither.
Given:
Member m = new BoardMember();
What will be printed by: System.out.println(m.toString());
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Transcribed Image Text:O 1 need help with this one. thx b Login | bartleby structure.com/courses/342857/external_tools/retrieve?display=full_width&url=https%3A%2F%2Fumn.quiz-Iti-iad-prod.instructure.com 1: << L public class UndergradStudent extends Student { } 2 Object u1= new GradStudent(); Legal or Illegal Narrowing, Widening or Neither Board Member b = new Member(); Legal or Illegal Narrowing, Widening or Neither @ GradStudent g1 = new Student (); Legal or Illegal Narrowing, Widening or Neither Student s1 = new UndergradStudent (); Legal or Illegal Narrowing, Widening or Neither UndergradStudent u2 = new Member(); Legal or Illegal Narrowing, Widening or Neither Person p2 = new GradStudent (); Legal or Illegal Narrowing, Widening or Neither Member m2 new Person(); Legal or Illegal Narrowing, Widening or Neither. For the eight Java statements below, identify each of the following statements as legal or illegal, and whether legal or not, state whether it represents a "narrow ing," or "widening" conversion, or neither. Given: Member m = new BoardMember(); What will be printed by: System.out.println(m.toString()); W OS F2 11: X ص SD س #3 command E L ۳ 20 F3 $ 4 4 ду S R ذ F Cis 000 000 F4 % 5 Gill: J. O F5 ء V ئ G A T .... 6 g MacBook Air F6 & 7 7 V ل : H ز ع ◄◄ F7 YU.... Ī J BIN! * 00 o: W J X 8 ㅅ ع G Sign in - Google Accounts | M DII F8 ( 9 3 9 K 9 XSKN ) १ O ن C. DD F9 V H ) 0 X L A - [P] そ A Settings - Passwords iCloud Storage is Full . Upgrade your storage to keep using Tourer A F10 command 1 4 V . F11 alt { } て [ ] 21 Actor ? option + 11 = X S F12 + So Upgrade Not Now $0 delet
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