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Java Java Objects (Retired) Meet Objects Creating Classes

Posted by Yusuf Akviran
Yusuf Akviran
2,668 Points

Why use "m" before the color? I didn't understand this.

Thanks for helping!

GoKart.java 
public class GoKart{
  public String mColor = "red";
}

1 Answer

Luke Glazebrook
Luke Glazebrook
13,564 Points
Luke Glazebrook
Luke Glazebrook
13,564 Points

Hi Yusuf!

We do this because the color is a Member Variable of a car and all member variables are prefixed with 'm'. If you need any more help with this then feel free to ask!

Jacob Bergdahl
Jacob Bergdahl
29,118 Points
Jacob Bergdahl
Jacob Bergdahl
29,118 Points

To add on to this comment; the reason why we even give member variables a prefix (because it is of course syntactically possible to create a member variable without the prefix!) is so that you can easily distinguish it in your code, and also because typing "m" in your code will show you all your member variables, after which you can select one and use auto-complete. This means that you won't have to scroll up every time you want to remind yourself of what member variables you have, and that you can easily see in your code if a variable is a member variable or not!