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interface Bus
{
  void move();
}
class ElectricBus implements Bus
{
  public void move()
  {
    System.out.println("Implemented  move() method.");
  } 
}
public class InterfaceTest1
{
  public static void main(String[] args)
  {
    new ElectricBus().move();
  }
}

interface Car
{
  int basePrice=1000;
}
public class InterfaceTest2 implements Car
{
  void changePrice()
  {
    basePrice = 2000;
    System.out.print(basePrice);
  }
  public static void main(String[] args)
  {
    new InterfaceTest2().changePrice();
  }
}

interface Book
{
  char type='C'; 
}
public class InterfaceTest3
{
  public static void main(String[] args)
  {
    System.out.println(new Book().type);
  }
}