Collections.sort(performers, new Comparator<Performer>() { public int compare(Performer o1, Performer o2) { return o1.getSortId().compareTo(o2.getSortId()); } });? ?此时的比较o1,o2对象之间的属性,按照字母自然顺序比较 比如:a,b,c,d
Collections.sort(performers, new Comparator<Performer>() { public int compare(Performer o1, Performer o2) { return o1.getSortId().compareTo(o2.getSortId()); } });? ?此时的比较o1,o2对象之间的属性,按照字母自然顺序比较 比如:a,b,c,d