数组常用操作。以逗号隔开、以逗号+单引号隔开、转List等

String []array &＃61; new String[]{"A", "B", "C"};{System.out.println("数组排序");Arrays.sort(array);for (String r : array) {System.out.println(r);}}{System.out.println("数组转List");for (String r : Arrays.asList(array)) {System.out.println(r);}}{System.out.println("List转数组");List<String> list &＃61; Arrays.asList(array);for (String r : list.toArray(new String[list.size()])) {System.out.println(r);}}{System.out.println("数组转成set集合");Set<String> set &＃61; new HashSet<>(Arrays.asList(array));System.out.println(set);}{System.out.println("数组转字符串&＃xff0c;以逗号隔开");String s &＃61; StringUtils.join(array, ",");System.out.println(s);}{System.out.println("数组转字符串&＃xff0c;以单引号及逗号分开&＃xff0c;一般用于SQL拼IN串");String s &＃61; StringUtils.join(array, "\&＃39;,\&＃39;");String s1 &＃61; StringUtils.wrap(s, "\&＃39;");System.out.println(s1);}


输出结果&＃xff1a;

数组排序
A
B
C
数组转List
A
B
C
List转数组
A
B
C
数组转成set集合
[A, B, C]
数组转字符串&＃xff0c;以逗号隔开
A,B,C
数组转字符串&＃xff0c;以单引号及逗号分开&＃xff0c;一般用于SQL拼IN串
&＃39;A&＃39;,&＃39;B&＃39;,&＃39;C&＃39;