I need help with methods in Java

I am supposed to recreate a method I had previously created that set a parameter to increment by one. After I originally coded that method, the exercise had me change it to a parameter that can increment by any value. Now it wants me to recreate my original method WITHOUT removing the second method. I can do this but because methods have the same name, the code bugs. I know that I should be able to change the parameter of a previously used method successfully but I haven't been able to figure it out. The videos accompanying this portion of the track have us working on a project that has similar concepts, but isn't similar enough for me to extrapolate a solution.

class GoKart {
  public static final int MAX_BARS = 8;
  private String color;
  private int barCount;
  private int lapsDriven;

  public GoKart(String color) {
    this.color = color;
  }

  public String getColor() {
    return color;
  }
  public void charge() {
    barCount = MAX_BARS;
  }

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

  public boolean isFullyCharged() {
    return MAX_BARS == barCount;
  }

  public void drive(int lapsDriven) {
    drive += lapsDriven;
    barCount-= lapsDriven;
  }


}