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Java Java Objects Harnessing the Power of Objects Computed Properties

Posted by Merianna Kachadurian
Merianna Kachadurian
904 Points

I am stuck, how could i write the following method in Java

in a task it asks to write the following method after i was done from the previous task: Great! Now let's create a similar method named isFullyCharged that checks to see if the current bar count is at the maximum charge. and bellow you can see the whole class including isFullyCharged method. what's the wrong? tried to write in another ways but they did not work!

GoKart.java
class GoKart {
  public static final int MAX_BARS = 8;
  private String color;
  private int barCount;

  public GoKart(String color) {
    this.color = color;
    barCount = 0;
  }

  public String getColor() {
    return color;
  }

  public void charge() {
    barCount = MAX_BARS;
  }

  public boolean isBatteryEmpty(){
   if (barCount == 0){
     return true;
   }
     else return false;
   }

  public boolean isFullyCharged(){
    if (charge()==0){
      return true
    }
  }

}

```Java

5 Answers

Price Rebel
Price Rebel
306 Points
Price Rebel
Price Rebel
306 Points

This is even simpler

public boolean isFullyCharged() { return MAX_BARS == barCount; }

Merianna Kachadurian
Merianna Kachadurian
904 Points
Merianna Kachadurian
Merianna Kachadurian
904 Points

it worked for me as the following: public boolean isFullyCharged(){ if (barCount==MAX_BAR){ return true; } return false; }

Adinel Berehorschi
Adinel Berehorschi
1,771 Points
Adinel Berehorschi
Adinel Berehorschi
1,771 Points

Worked for me as well, but you wrote "MAX_BAR" instead of "MAX_BARS".

public boolean isFullyCharged(){ if (barCount==MAX_BARS){ return true; } return false; }

That's the correct version. :)

terrimodomo
terrimodomo
6,153 Points
terrimodomo
terrimodomo
6,153 Points

Not sure what the problem is here for isFullyCharged????not working, please any ideas, thanks.

class GoKart { public static final int MAX_BARS = 8; private String color; private int barCount;

public GoKart(String color) { this.color = color; }

public String getColor() { return color; }

public void charge() { barCount = MAX_BARS; }

public boolean isBatteryEmpty (){ if(barCount == 0){ return true; } else{ return false; } } } public boolean isFullyCharged(){ if (barCount == MAX_BARS){ return true; } return false; }

Ajit Shrestha
Ajit Shrestha
3,149 Points
Ajit Shrestha
Ajit Shrestha
3,149 Points

public boolean isFullyCharged(){ if (barCount == MAX_BARS){ return charged; } else { return notCharged; } } this worked for me

Jonathan Hector
Jonathan Hector
5,225 Points
Jonathan Hector
Jonathan Hector
5,225 Points

It's actually a simple error Remember that your barCount is being updated through the charge() method. So what you need to do is just call it and see where it is up to. Simple way to view a Boolean is to just think of a way to check if something is 'true' or 'false'. Just instantiate a variable that does the job and don't forget the ';'. Also you are checking the barCount not the actual 'charge()' method. Hope that helps

  public boolean isFullyCharged(){
   boolean charged = false;
    if (barsCount == 0){
      return true;
    }
return charged;
  }
Ivan Bagaric
Ivan Bagaric
Courses Plus Student 12,356 Points

Yeah, but also he can do shortly:

public boolean isFullyCharged(){ return (barsCount == 0) ? true : false; }