Must return Object from a boolean method. How to do?
package com.codegym.task.task15.task1505;
import java.util.ArrayList;
import java.util.List;
import java.lang.Boolean;
/*
OOP: Fix inheritance problems
*/
public class Solution {
public static interface LivingPart {
boolean containsBones();
}
public static class BodyPart implements LivingPart {
private String name;
public BodyPart(String name) {
this.name = name;
}
public boolean containsBones() {
String str = "Yes";
return Boolean.valueOf(str);
}
public String toString() {
return containsBones() ? name + " contains bones" : name + " does not contain bones";
}
}
public static class Finger extends BodyPart {
private boolean isArtificial;
public Finger(String name, boolean isArtificial) {
super(name);
this.isArtificial = isArtificial;
}
public boolean containsBones() {
return super.containsBones() && !isArtificial;
}
}
public static void main(String[] args) {
printlnFingers();
printlnBodyParts();
printlnLivingParts();
}
private static void printlnLivingParts() {
if(new BodyPart("Hand").containsBones())
System.out.println("Yes");
else
System.out.println("No");
}
private static void printlnBodyParts() {
List<BodyPart> bodyParts = new ArrayList<BodyPart>(5);
bodyParts.add(new BodyPart("Hand"));
bodyParts.add(new BodyPart("Leg"));
bodyParts.add(new BodyPart("Head"));
bodyParts.add(new BodyPart("Body"));
System.out.println(bodyParts.toString());
}
private static void printlnFingers() {
List<Finger> fingers = new ArrayList<Finger>(5);
fingers.add(new Finger("Thumb", true));
fingers.add(new Finger("Forefinger", true));
fingers.add(new Finger("Middle finger", true));
fingers.add(new Finger("Ring-finger", true));
fingers.add(new Finger("Pinky", true));
System.out.println(fingers.toString());
}
}