Inheritance in java

Deriving the base class property to child class. In java we using the keyword extends.

Syntax :
<modifier> class  baseclassname extends childclassname

Example

class First
{
 int a;
 First()
 {
  a=5;
  System.out.println("From class First's constructor ...");
 }
 void hai()
 {
  System.out.println("From class First , a = " + a);
 }
}

class Inheritance  extends First
{
 Inheritance()
 {
  super(); //calling the base class constructor.
 }  
 public static void main(String args[])
 {
  int a=5; 
  First f = new First();
  f.hai();
  System.out.println("From class Inheritance , a = " + 5);
 }
}

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