Here parent means either mother/father..we can use that constructor like this.but giving compilation error as
"cannot find symbol parent".can anyone explain plz..
My code as:
public class Solution {
public static void main(String[] args) throws IOException {
BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
String GrandfatherName = reader.readLine();
Cat catGrandFather = new Cat(GrandfatherName);
String GrandmotherName = reader.readLine();
Cat catGrandMother = new Cat(GrandmotherName);
String fatherName = reader.readLine();
Cat catFather = new Cat(fatherName,catGrandFather);
String motherName = reader.readLine();
Cat catMother = new Cat(motherName,catGrandMother);
String sonName = reader.readLine();
Cat catSon = new Cat(sonName,catMother,catFather);
String daughterName = reader.readLine();
Cat catDaughter = new Cat(daughterName, catMother,CatFather);
System.out.println(catMother);
System.out.println(catDaughter);
}
public static class Cat {
private String name;
private Cat mother;
private Cat father;
Cat(String name) {
this.name = name;
}
Cat(String name,Cat parent)
{
this.name = name;
this.parent = parent;
}
Cat(String name, Cat mother,Cat father) {
this.name = name;
this.mother = mother;
this.father = father;
}
@Override
public String toString() {
if (parent == null && father == null)
return "The cat's name is " + name + ", no mother , no father ";
else if ((parent == null) && (father != null))
return "The cat's name is " + name + ", no mother, " + father.name + " is the father";
else if ((parent != null) && (father == null))
return "The cat's name is " + name + ", " + parent.name + " is the mother, no father";
else if ((parent != null) && (father != null))
return "The cat's name is " + name + ", " + parent.name + " is the mother, " + father.name + " is the father";
}
}
}
I dont understand about parent
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Sasha
10 December 2018, 22:26
You changed variable parent in Cat class into mother &/ father so when you create object Cat with 2 arguments, one of those arguments becomes parent variable which doesn't exist anymore. You need to change parent into mother/father in constructor as well as in toString() method.
You also have to make one more constructor with 2 arguments (just change order first:object, second:String) so you can differentiate between father and mother references in arguments.
+2
Khurram
8 December 2018, 13:00
1. when initializing catDaughter object, there is a typo, CatFather should be with a small 'c'
2. there is no parent variable in the Cat class
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