question: public List simulate ( ) { List [ ] val = new List [ 4 ] ; for ( int i = 3 ; i >= 0 ; i -- ) { Village v = forward [ i ] ; if ( v != null ) { val [ i ] = v . simulate ( ) ; } } for ( int i = 3 ; i >= 0 ; i -- ) { List l = val [ i ] ; if ( l != null ) { for ( Enumeration e = l . elements ( ) ; e . hasMoreElements ( ) ; ) { Patient p = ( Patient ) e . nextElement ( ) ; hospital . putInHospital ( p ) ; } } } hospital . checkPatientsInside ( returned ) ; List up = hospital . checkPatientsAssess ( this ) ; hospital . checkPatientsWaiting ( ) ; Patient p = generatePatient ( ) ; if ( p != null ) { hospital . putInHospital ( p ) ; } return up ; }
target:  Simulate the Columbian health care system for a village.