class Covarient

{

void fxn0()

{

System.out.println("hello i am no return type fxn ");

}

int fxn()

{

System.out.println("hello i am int return type fxn ");

return 100;

}

char fxn2()

{

System.out.println("hello i am char return type fxn ");

return 'A';

}

float fxn3()

{

System.out.println("hello i am float return type fxn ");

return 3.14f;

}

Covarient fxn4()

{

return this;//this referes to current class obj

}

}

class Main

{

public static void main(String[] args) {

// Covarient obj=new Covarient();

// obj.fxn0();//hello i am no return ......

// System.out.println(obj.fxn());//100

// System.out.println(obj.fxn2());// A

// System.out.println(obj.fxn3());// 3.14

// Covarient obj2; //not initialized only declared

// obj2=obj.fxn4(); //got Covarient class object in return

new Covarient().fxn4().fxn0();//2nd way

// obj2.fxn0();1st way

}

}