public Date(){
  this(System.currentTimeMillis());
}

public Date ( ) { this ( System . currentTimeMillis ( ) ) ; }
allocates a date object and initializes it to represent the current time specified number of milliseconds since the standard base time known as " the epoch " , namely january 1 , 1970 , 00 : 00 : 00 gmt . see also : system . currenttimemillis ( )
