Java classes this.blabla question

Question

during the java tutorial when learning about getters and setters, I found that they use both this.color and just color, I know that in JavaScript this is a huge deal, but I tried this, and they both actually seemed to work (link can be found below), can anyone explain what this is about?

https://code.sololearn.com/cF5RInwpj86A/?ref=app

Answer 1

here , in this code , U r not doing anything with class Vehicle1 and with its object v2 , u r just using object v1 of class vehicle ,
firstly setting color of v1 to be red & then printed it &
then u setted its color to blue & printed it

//i removed object v2 & class vehicle1 , then also it will work the same ... u can see the code :::

public class Vehicle {
private String color;

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

// Setter
public void setColor(String c) {
this.color = c;
}
}

class Program {
public static void main(String[ ] args) {
Vehicle v1 = new Vehicle();
v1.setColor("Red");
System.out.println(v1.getColor());
v1.setColor("Blue");
System.out.println(v1.getColor());
}
}

//👉i hv given an explanation about "this" in a post but its lost now , btw u can see this post
https://www.sololearn.com/Discuss/876647/?ref=app

Answer 2

"This.Color" is simply a direct reference to the field. It will always return the same field. "Color" However, may also refer to a peramiter or variable named in a more local scope like one defined in a function.

In such an instance this.Color refers to the object field while Color refers to the local variable.

Class person{
private String name;
public person (String name) {
this.name = name;
//field parameter
}
}