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Java Java Objects Meet Objects Add a Constructor

Jackie Wang
Jackie Wang
479 Points
Posted by Jackie Wang
Jackie Wang
479 Points

Now in the body of your constructor, set the private field color to the value of the color argument passed into the cons

help me !!!

GoKart.java 
class GoKart {
  private String color = "red";

  public GoKart(String color) {
    color = color;

  }
  public String getColor() {
    return color;
  }

}

1 Answer

andren
andren
28,558 Points
andren
andren
28,558 Points

When you have a field variable and a parameter that share the same name you have to prepend the field variable with the this keyword in order help java distinguish between the two variables. Like this:

class GoKart {
  private String color = "red";

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

  }
  public String getColor() {
    return color;
  }
}

That will allow you to pass to task 3.

Jackie Wang
Jackie Wang
479 Points
Jackie Wang
Jackie Wang
479 Points

I forgot to return color at first and thank you so much

Jackie Wang
Jackie Wang
479 Points
Jackie Wang
Jackie Wang
479 Points

class GoKart { private String mcolor = "red";

public GoKart(String color) { mcolor = color;

} public String getColor() { return mcolor; }

} why this one can't pass

andren
andren
28,558 Points
andren
andren
28,558 Points

That code is valid (it will compile and work) but it modifies code the challenge did not ask you to modify. Challenges tend to be pretty picky about you changing code that was already in place, and changing names is almost always something that will lead the challenge to fail, even if the code you end up writing actually would work fine.