public ClassPath(){
  String syscp=System.getProperty("sun.boot.class.path");
  String envcp=System.getProperty("env.class.path");
  if (envcp == null)   envcp=".";
  String cp=syscp + File.pathSeparator + envcp;
  init(cp);
}

public ClassPath ( ) { String syscp = System . getProperty ( "sun.boot.class.path" ) ; String envcp = System . getProperty ( "env.class.path" ) ; if ( envcp == null ) envcp = "." ; String cp = syscp + File . pathSeparator + envcp ; init ( cp ) ; }
build a default class path from the path strings specified by the properties sun . boot . class . path and env . class . path , in that order .
