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

Brandon Wash
PLUS
Brandon Wash
Courses Plus Student 1,186 Points
Posted by Brandon Wash
Brandon Wash
Courses Plus Student 1,186 Points

Create a helper method that returns whether or not the GoKart needs to be charged. Make it public and name it isBatteryE

Still have some difficulty writing out this code?

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

  public boolean isBattery Empty () {
  return mBatteryCount == 0;
  }
   public GoKart(String color) {
    mColor = color;
    mBarsCount = 0;
  }


  public String getColor() {
    return mColor;
  }

  public void charge() {
    mBarsCount = MAX_BARS;
  }
}
Kevin Gresmer
Kevin Gresmer
3,020 Points
Kevin Gresmer
Kevin Gresmer
3,020 Points

You have the identifier as "isbattery Empty" in your method but you can't have spaces in the method identifier(or name).

Try;

public boolean isBatteryE() { return mBatteryCount == 0; }

5 Answers

T K
T K
1,875 Points
T K
T K
1,875 Points

this is how it goes....

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

Augusto Hernandes
Augusto Hernandes
1,818 Points

Yep, that's the right answer!

Kevin Gresmer
Kevin Gresmer
3,020 Points
Kevin Gresmer
Kevin Gresmer
3,020 Points

My bad. We were looking at the wrong variable. mBatteryCount doesnt exist. We need to focus on mBarsCount.

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

Alain Breton
Alain Breton
2,656 Points
Alain Breton
Alain Breton
2,656 Points

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 boolean isBatteryEmpty(){ boolean isBatteryEmpty = isFullyCharged(); return isBatteryEmpty; }

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

public String getColor() { return mColor; }

public void charge() { mBarsCount = MAX_BARS; } }

Brandon Wash
PLUS
Brandon Wash
Courses Plus Student 1,186 Points
Brandon Wash
Brandon Wash
Courses Plus Student 1,186 Points

Hello Kevin,

Thanks for replying to my question. I have just put in the code public boolean isBatteryEmpty() { return mBatteryCount == 0; } The code is not executing

Nitin bahri
Nitin bahri
7,063 Points
Nitin bahri
Nitin bahri
7,063 Points

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

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

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

public String getColor() { return mColor; }

public void charge() { mBarsCount = MAX_BARS; }

}