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

Belinda Obi
PLUS
Belinda Obi
Courses Plus Student 1,947 Points

Please can I get help with understanding what to do in altering the "charge method" and the while loop?

Okay, so let's use our new isFullyCharged helper method to change our implementation details of the charge method. Let's make it so it will only charge until the battery reports being fully charged. Let's use the ! symbol and a while loop. Inside the loop increment mBarsCoun

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

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

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

}

1 Answer

Jennifer Nordell
seal-mask
STAFF
.a{fill-rule:evenodd;}techdegree
Jennifer Nordell
Treehouse Teacher

Hi there! It seems to me that you understood the challenge pretty well. Even though it will pass the challenge with the ´this´ in the while evaluation and the mBarsCount = MAX_ENERGY_BARS; these are not strictly needed and can be removed.

The reason your code is failing, is because you're missing a closed curly brace. :smiley:

Here was my solution:

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

Hope this helps! :sparkles: