按字母首字母 排序

import java.text.RuleBasedCollator;
import java.util.Arrays;
import java.util.Comparator;

public class Test
{
    public static void main(String args[])
    {
        Comparator<Object> cmp = (RuleBasedCollator)java.text.Collator.getInstance(java.util.Locale.CHINA);
        String[] array = {"张三", "李四", "王五"};
        Arrays.sort(array, cmp);
        for (String str : array)
        {
            System.out.println(str);
        }
    }
}