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

Posted by Mrinalini Shah
Mrinalini Shah
543 Points

I'm getting error Stack overflow. How do I resolve it?

public void charge() { mBarsCount = MAX_ENERGY_BARS; }

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

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

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() {
    mBarsCount = MAX_ENERGY_BARS;
  }

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

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

1 Answer

Benjamin Singh
Benjamin Singh
15,248 Points
Benjamin Singh
Benjamin Singh
15,248 Points

You got it almost correct.

You put the while() loop in the wrong method. The isFullyCharged() method just tells you if the battery is fully charged. You should not increment the mBarsCount there. For that you have the charge() method.