按字母順序排列列表中的名稱？

Question

能否請你幫我進行排序名單按字母順序

我的代碼

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()); 

Answer 1

你並不需要創建一個新的比較。請致電Collections.sort(emailList);。

UPDATE：

Collections.sort(emailList, new Comparator<String>() 
{ 
    @Override 
    public int compare(String text1, String text2) 
    { 
     return text1.compareToIgnoreCase(text2); 
    } 
});