'this' in Java: How does it work?

Question

I know that \'this\' is acting as reference in Java. We can use it inside the class members only.

What I am asking is... because it is used in the members of the cl

Answer 1

"this" is implicitly passed as argument for every non-static method call you make. You can think of it as syntactical sugar, but at machine level, it is indeed an additional parameter which gets passed.

class Person
{
  string name;
  int age;
  void print(){ System.out.writeln(name+" "+age); }
}

works like that (pseudo-code):

class Person
{
  string name;
  int age;
}

void print(Person this)
{
  System.out.writeln(this.name+" "+this.age);
}