package edu.uab.cis.midterm;
public class Question4 {
public class Fruit {
public boolean eatable;
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (!(obj instanceof Fruit))
return false;
Fruit other;
try { other = (Fruit) obj; }
catch (Exception e) { return false; }
if (!getClass().equals(other.getClass()))
return false;
if (eatable != other.eatable)
return false;
return true;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + getClass().hashCode();
result = prime * result + (eatable ? 1231 : 1237);
return result;
}
}
public class Apple extends Fruit
{
public int color;
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (!(obj instanceof Apple))
return false;
Apple other;
try { other = (Apple) obj; }
catch (Exception e) { return false; }
if (!getClass().equals(other.getClass()))
return false;
if (eatable != other.eatable)
return false;
if (color != other.color)
return false;
return true;
}
@Override
public int hashCode() {
final int prime = 31;
int result = super.hashCode();
result = prime * result + getClass().hashCode();
result = prime * result + color;
return result;
}
}
}
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