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1 public class Troll extends Creature{ 2 private double happinessLevel; ...... 9 public double getHappinessLevel(){ 10...

1 public class Troll extends Creature{
2 private double happinessLevel;
......
9 public double getHappinessLevel(){
10 return happinessLevel;
11 }
......
17 @Override
18 public String speak(){
19 String result = "";
20 if(happinessLevel > getLifeLevel())
21 result = "Let's play";
22 return result;
23 }
24 else{
25 result = "I must break you";
26 return result;
27 }
28 }

on line 20, why there is no need to call the reference here for getLifeLevel()?

ps. getLifeLevel() is the method in the class Creature.

Thank you.

engineering   Computer-Science   
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Answer #1 

Troll extends from Creature class.
so, Troll class inherits all the methods of Creature class.
so, Troll class can directly access the methods of Creature class without using any reference.
If we want, we can use super.getLifeLevel() to access getLifeLevel of Creature class, but it's not required.
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