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Java Java Objects (Retired) Harnessing the Power of Objects Helper Methods

Posted by Sarfaraj Alam
Sarfaraj Alam
14,074 Points

Code Challenge: Helper Methods

public class GoKart { public static final int MAX_BARS = 8; private String mColor; private int mBarsCount;

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

public String getColor() { return mColor; }

public void charge() { mBarsCount = MAX_BARS; } public boolean isBatteryEmpty() { return mBarsCount == 0; } public boolean isFullyCharged() { if (GoKart.isFullyCharged()) { System.out.println("It is fully charged"); } if (!GoKart.isFullyCharged()) { System.out.println("It is need to be more charging"); }

}

}

what is wrong in this?

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

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

  public String getColor() {
    return mColor;
  }

  public void charge() {
    mBarsCount = MAX_BARS;
  }
  public boolean isBatteryEmpty() {
 return mBarsCount == 0;
  }
  public boolean isFullyCharged() {
    if (GoKart.isFullyCharged()) {
      System.out.println("It is fully charged");
    } 
    if (!GoKart.isFullyCharged()) {
      System.out.println("It is need to be more charging");
    }

  }

}

1 Answer

Jeremy Hill
Jeremy Hill
29,567 Points
Jeremy Hill
Jeremy Hill
29,567 Points

Basically you need your program to figure out when the battery has been depleted so you need to write code that will prompt when the battery hits zero. It's the same for when it is fully charged. With that being said your code should look like this:

public class GoKart {
  public static final int MAX_BARS = 8;
  private String mColor;
  private int mBarsCount;

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

  public String getColor() {
    return mColor;
  }

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

  }
}