Question

I have a list of java object that have 4 members.

int id;
String name;
String age;
int order;

I want to sort the list of this object w.r.t order.

Answer 1

class Foo {

    private int id;
    private String name;
    private String age;
    private int order;
    //accessors
}

Use Custom Comparator

    List<Foo> list = null;
    Collections.sort(list, new Comparator<Foo>() {

          public int compare(Foo o1, Foo o2) {
            return Integer.valueOf(o1.getOrder()).compareTo(Integer.valueOf( o2.getOrder()));
        }
    });