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Java Java Objects (Retired) Harnessing the Power of Objects Incrementing

Chris Polito
Chris Polito
1,028 Points
Posted by Chris Polito
Chris Polito
1,028 Points

I really need help with this one

I'm confused with the "While" I need to say continue to add to mBarsCount until isFullyCharged.

GoKart.java 
public class GoKart {
  public static final int MAX_ENERGY_BARS = 8;
  private String mColor;
  private int mBarsCount;

  public GoKart(String color) {
    mColor = color;
    mBarsCount = 0;
  }

  public String getColor() {
    return mColor;
  }

  public void charge() {
    if (!mBarsCount.isFullyCharged()){
     mBarsCount++; 
    } While (mBarsCount.
  }

  public boolean isBatteryEmpty() {
    return mBarsCount == 0;
  }

  public boolean isFullyCharged() {
    return mBarsCount == MAX_ENERGY_BARS;
  }

}

3 Answers

nihouse
nihouse
7,160 Points

The while loop should be enough

public void charge() {
    while(!isFullyCharged()){
      mBarsCount++;
    }
  }

because mBarsCount gets incremented in the while loop, until it has the right/correct value. Therefore mBarsCount does not need to be set again at the end.

Carlos Federico Puebla Larregle
Carlos Federico Puebla Larregle
21,073 Points
Carlos Federico Puebla Larregle
Carlos Federico Puebla Larregle
21,073 Points

That's right, I forgot to omit that, I think it's there by default in the code challenge.

Carlos Federico Puebla Larregle
Carlos Federico Puebla Larregle
21,073 Points
Carlos Federico Puebla Larregle
Carlos Federico Puebla Larregle
21,073 Points

The while loop iterates until the condition is no longer true. You can do it like this:

  public void charge() {

    while(!isFullyCharged()){
      mBarsCount++;
    }
    mBarsCount = MAX_ENERGY_BARS;
  }

I hope that helps a little bit