你能帮我按字母顺序排序一个列表吗
我的代码
emailList.add(contact.getUserName());
String[] emails = new String[emailList.size()];
emailList.toArray(emails);
namesList.add(name);
Collections.sort(emailList, new Comparator() {
public int compare(Object o1, Object o2) {
String name1 = (String) o1;
String name2 = (String) o2;
return name1.compareToIgnoreCase(name2);
}
});
System.out.println("namesList.toString() = " + namesList.toString());
答案 0 :(得分:27)
您无需创建新的比较器。只需致电Collections.sort(emailList);
。
<强>更新强>
Collections.sort(emailList, new Comparator<String>()
{
@Override
public int compare(String text1, String text2)
{
return text1.compareToIgnoreCase(text2);
}
});