private void createVMs(){
  Host host=Host.getHost(0);
  for (int i=0; i < 4; i++) {
    vmArr[i]=host.getVM(i);
  }
}

private void createVMs ( ) { Host host = Host . getHost ( 0 ) ; for ( int i = 0 ; i < 4 ; i ++ ) { vmArr [ i ] = host . getVM ( i ) ; } }
function to create 4 vms on a given host .
