Variable Hiding and method parameter in Java pro

Keyword for Variable Hiding

class Jbt

{

int variable = 5;

public static void main(String args[])

{

Jbt obj = new Jbt();

obj.method(20);

obj.method();

}

void method(int variable)

{

variable = 10;

System.out.println("Value of Instance variable :" + this.variable);

System.out.println("Value of Local variable :" + variable);

}

void method()

{

int variable = 40;

System.out.println("Value of Instance variable :" + this.variable);

System.out.println("Value of Local variable :" + variable);

  }

}

This with Constructor

class Jbt

{

Jbt()

{

this("Jbt");

System.out.println("Inside Constructor without parameter");

}

Jbt(String str)

{

System.out.println("Inside Constructor with String parameter as " + str);

}

public static void main(String[] args)

{

Jbt obj = new Jbt();

   }

}

This keyword with Method

class Jbt

{

public static void main(String[] args)

{

Jbt obj = new Jbt();

obj.methodTwo();

}

void methodOne()

{

System.out.println("Inside Method One");

}

void methodTwo()

{

System.out.println("Inside Method Two");

this.methodOne();

}

}

This keyword as method parameter

public class JbtThisAsParameter

{

public static void main(String[] args)

{

Jbt1 obj = new Jbt1();

obj.i = 10;

obj.method();

}

}

class Jbt1 extends JbtThisAsParameter

{

int i;

void method()

{

method1(this);

}

void method1(Jbt1 t)

{

System.out.println(t.i);

}

}