This and Super

public class ThisAndSuperkeyword extends Super {

public static void main(String[] args) {

ThisAndSuperkeyword t = new ThisAndSuperkeyword(1, 2, 3);
t.getVariable();

}

int a = 10;
int b = 1000;
int c = 100;

public void getVariable() {
    int a = 20;
    System.out.println("this.a:: "+ this.a);
    System.out.println("present:: "+ a);
    System.out.println("super.a:: "+super.a);

}

ThisAndSuperkeyword() {
    super();
    System.out.println("no arg constructor");
}

ThisAndSuperkeyword(int a) {
    this();
    System.out.println("single param constructor");
}

ThisAndSuperkeyword(int a, int b) {
    this(100);
    this.a = a;
    this.b = b;
    System.out.println("two param constructor");
}

ThisAndSuperkeyword(int a, int b, int c) {
    this(1, 2);
    this.a = a;
    this.b = b;
    this.c = c;
}

}


public class Super {
int a = 100;

Super() {
    System.out.println("super");
}


}


super
no arg constructor
single param constructor
two param constructor
this.a:: 1
present:: 20
super.a:: 100