Inheritance

  class Person
  {
    protected String name,city;
    public Person(String nm,String ct)
    {
        name=nm;
        city=ct;
    }
    public void showData()
    {
        System.out.println("Name is "+name);
        System.out.println("City is "+city);
    }
  }
  class Employee extends Person
  {
    protected String job;
    protected int salary;
    public Employee(String nm,String ct,String jb,int sl)
    {
        super(nm,ct);
        job=jb;
        salary=sl;
    }
    public void showData()
    {
        super.showData();
        System.out.println("Job is "+ job);
        System.out.println("Salary is "+salary);
    }
  } 
  class Manager extends Employee
  {
    protected String branch;
    public Manager(String nm,String ct,String jb,int sl,String br)
    {
        super(nm,ct,jb,sl);
        branch=br;
    }
    public void showData()
    {
        super.showData();
        System.out.println("Branch is "+branch);
    }
  }
  class demo
  {
    public static void main(String args[])
    {
        Person a=new Person("Amit Jain","Amravati");
        a.showData();
        Employee b;
        b=new Employee("Nitin Joshi","Nagpur","Clerk",25700);
        b.showData();
        Manager c;
        c=new Manager("M.Rao","Mumbai","Sr.Manager",65000,"SBI-AMT");
        c.showData();
    }
  }