I'm having trouble with constuctors

Question

i dont remember him talking about adding colors so i am a little lost
GoKart.java
public class GoKart {
  private String mColor = "red";
  public   
  public String getColor() {
    return mColor;
  }
}

Christopher Augg · Answer

Hello Mike,
Constructors are used to create an instance of a class that we write. We also call these instances objects. For example, if I wrote a class for a car, I could instantiate or create many different cars from that one class.
  ```java
  Car carOne = new Car();
  Car carTwo = new Car();
  ```
Notice here that I have called the Car() constructor and I pass no arguments at all. We can do this because Java classes all have a default constructor for when we do not write one in our class. But what if I want to make a car blue when I create it?
  ```java
   Car carThree = new Car(blue);
  ```
In order to do this we need to write a Constructor in the class and pass it an argument. We should make sure the name of the constructor matches the name of the class.
  ```java
       public Car( String color) {
           mColor = color;   // mColor is a private member variable that holds a String to represent the color of this car. 
       }
  ```
The instructions for this challenge:
"Add a public constructor to the GoKart.java class that allows the parameter color to be passed in. In the constructor store the argument color in the private color field."
I think you can get this now. Let me know if you are still stuck.
Regards,
Chris

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mike LaBianca

mike LaBianca

I'm having trouble with constuctors

1 Answer

Christopher Augg

Christopher Augg