Consider the following class definition: public class AClass { private int u; private int v; public void print() } public void set(int x, int y) public AClass() { } public AClass(int x, int y) } What is wrong with the following class definition? class BClass AClass private int w; public void print() { System.out.println("u + v + w = "+ (u + v + w); public BClass() { super(); w = 0; } public BClass(int x, int y, int z) { super(x, y); w = z;
Consider the following class definition: public class AClass { private int u; private int v; public void print() } public void set(int x, int y) public AClass() { } public AClass(int x, int y) } What is wrong with the following class definition? class BClass AClass private int w; public void print() { System.out.println("u + v + w = "+ (u + v + w); public BClass() { super(); w = 0; } public BClass(int x, int y, int z) { super(x, y); w = 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
Problem 1PE
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Transcribed Image Text:Inheritance.
Q1:
Consider the following class definition:
public class AClass
{
private int u;
private int v;
public void print()
{
}
public void set(int x, int y)
public AClass()
}
public AClass(int x, int y)
{
}
}
What is wrong with the following class definition?
class BClass AClass
{
private int w;
public void print()
{
System.out.println("u + v + w = " + (u + v + w);
}
public BClass()
{
super();
w = 0;
}
public BClass(int x, int y, int z)
{
super(x, y);
w = z;
}
}
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