list根据某个字段排序

Collections.sort(list, new Comparator<Object>() {

@Override

public int compare(Object o1, Object o2) {

if (o1.getP() > o2.getP()) {

return -1;

} else if (o1.getP() < o2.getP()) {

return 1;

} else {

return 0;

}

}

});