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Java Java Objects Harnessing the Power of Objects Overload Methods

Modify the drive method to define a parameter of how many laps should be driven. Update the method body to handle the ne

help me

GoKart.java
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() {
    lapsDriven++;
    barCount--;
  }
}

3 Answers

So, we need to locate the method and see how it currently operates.

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

The drive method currently takes no parameters. (Parameters are bits of information to be used in the method.) In this case, we need to add a parameter by declaring its type and giving it a name. We will also adjust our increment/decrement shorthand to use the input param to increment/decrement our variaables. see the code below.

 public void drive(int laps) { //<-- note the added parameter in the method parentheses
    lapsDriven+= laps; // note we no longer use the double ++ or --, but use the += and -= and the passed in parameter
    barCount-= laps;
  }

what are you intending

A Wood
A Wood
1,666 Points

Thanks for the explanation! Helped a lot.

Ronald Morris
Ronald Morris
3,026 Points

Great answer and a very helpful explanation!

Muhammad Asif
PLUS
Muhammad Asif
Courses Plus Student 557 Points

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() { lapsDriven++; barCount--; }

public void drive(int laps) { //<-- note the added parameter in the method parentheses lapsDriven+= laps; // note we no longer use the double ++ or --, but use the += and -= and the passed in parameter barCount-= laps; } }

I was intending to help you try to solve the problem. Is there some specific question you need answered, or concept that is hard to grasp that you would like explained?