前言:啥也不说了,show me the code!

static List
     
       intArrayAsList(final int[] a){    if(a == null)        throw new NullPointerException();    retrun new AbstractList
      
       () {        public Interger get(int i) {            retrun a[i];        }        @Override public Integer set(int i, Integer val){            int oldVal = a[i];            a[i] = val;            retrun oldVal;        }        public int size(){ retrun a.length;}    };}