What is the meaning of “this” in Java?

Question

Normally, I use this in constructors only.

I understand that it is used to identify the parameter variable (by using this.something), if i

Answer 1

The this Keyword is used to refer the current variable of a block, for example consider the below code(Just a exampple, so dont expect the standard JAVA Code):

Public class test{

test(int a) {
this.a=a;
}

Void print(){
System.out.println(a);
}

   Public static void main(String args[]){
    test s=new test(2);
    s.print();
 }
}

Thats it. the Output will be "2". If We not used the this keyword, then the output will be : 0