标签:字符串 seo .so 字母 size ring case list highlight
一,数组排序
1. 数字排序 int[] intArray = new int[] { 4, 1, 3, -23 };
Arrays.sort(intArray);
输出: [-23, 1, 3, 4]
2. 字符串排序,先大写后小写 String[] strArray = new String[] { "z", "a", "C" };
Arrays.sort(strArray);
输出: [C, a, z]
3. 严格按字母表顺序排序,也就是忽略大小写排序 Case-insensitive sort
Arrays.sort(strArray, String.CASE_INSENSITIVE_ORDER);
输出: [a, C, z]
4. 反向排序, Reverse-order sort
Arrays.sort(strArray, Collections.reverseOrder());
输出:[z, a, C]
5. 忽略大小写反向排序 Case-insensitive reverse-order sort
Arrays.sort(strArray, String.CASE_INSENSITIVE_ORDER);
Collections.reverse(Arrays.asList(strArray));
输出: [z, C, a]
二,数组和列表互转
String[] str = new String[]{"a", "b", "c", "d"}; List<String> st = Arrays.asList(str); //数组转list System.out.println(str); String[] b = st.toArray(new String[st.size()]); //list转数组 System.out.println(b);
标签:字符串 seo .so 字母 size ring case list highlight
原文地址:http://www.cnblogs.com/wanhua-wu/p/6650610.html