schwartz.java

schwartz.java

class Tuple {
	public Object obj;
	public int idx;
	Tuple(Object o, int i) { this.obj = o; this.idx = i; }
}
List<Tuple> tmp = new ArrayList<Tuple>();
int i = 0;
for (Object obj : objects) {
	tmp.add(new Tuple(obj, i++));
}
Collections.sort(tmp, new Comparator(){
    public int compare(Object o1, Object o2) { ... } // compare o1 and o2
    public boolean equals(Object o) { ... }
});