What do i do?

Question

I don't understand this part, this guy just runs code without explaining much in great detail,]

GoKart.java

public class GoKart {
  private String mColor = "red";

  public String getColor() {
    return mColor;
  }
  public  (String Color){
  mColor=Color;
  }
}

Answer 1 · 2016-02-10T17:34:20Z

February 10, 2016 5:34pm

"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."

A constructor is the kind of a method that gets called on when ever you make an instance that class, a new object of GoKart. Think of the construcor as the initialization method of the class. So if you which to launch a method or edit some instance variables/class field objects, at initialization, just throw it in the constructor. As there is no need for a constructor to return a type (like strin, int etc..), or have an access type (public, private, etc..), it doesn't have those. The constructor is defined by the class name only, in this case GoKart(){}. You can also give the constructor parameters, like this:

GoKart(String strPara, int intPara)
{
     classVariableStr = strPara;
     classVariableInt = intPara;
     methodGoKartDrive();
}

So if the private classVariableStr field was null, it now contains strPala. strPala is what ever you made it to be when you made a new object of the class. A parameter variable needs input, so you could give it what ever String you want.

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John Westlen

John Westlen

What do i do?

Oshedhe Munasinghe

Oshedhe Munasinghe

Oshedhe Munasinghe

Oshedhe Munasinghe

Well done :D

1 Answer

Kevin Frostad

Kevin Frostad