// ********** AdapterDemo.java **********
interface TargetIF { public void newOperation(); }

class Adaptee { public void legacyOperation() {} }

class Adapter implements TargetIF {
  Adaptee adaptee = new Adaptee();
  public void newOperation() { adaptee.legacyOperation(); }
}
public class AdapterDemo {
  private static final int MAX = 1000;
  public static void main(String args[]) {
    long t1 = System.currentTimeMillis();
    for (int i=0; i<MAX; i++) {
      TargetIF adapter = new Adapter();
      for (int j=0; j<10*MAX; j++) 
        adapter.newOperation(); 
    }
    long t2 = System.currentTimeMillis();
    System.out.print((t2-t1)+" ");
    System.out.flush(); 
  }
}