Question

【java】集合List里面的元素排列

Answer 1

//China USA Engish France Germany

x05 List list =new ArrayList();

x05 list.add("China");

x05 list.add("USA");

x05 list.add("Engish");

x05 list.add("France");

x05 list.add("Germany");

x05 //对list集合进进排序

x05 Collections.sort(list);

x05 //打印

x05 System.out.println(list);