如何添加正则表达式以将字母数字字符与某些特殊字符匹配

Question

I have the words with special character like

Ex: ABC12-xy
    ABCD
    ABC12_12
    12-AB_xy

I have tried the following but not working

'(-\\w+)'   ,   '[-A-Za-z_0-9]'

But not working.

Answer 1

Try this regex

[\w-]+

Which matches all below

ABC12-xy
ABCD
ABC12_12
12-AB_xy

Answer 2

use [\\w-]+ to match the entire string. You can use ^ and $ to specify the start and the end of the line. For example ^[\\w-]+$ would match the entire line only if the line has all word or - characters.

Answer 3

String regex = "[A-Za-z0-9_\\-]+";
System.out.println(java.util.regex.Pattern.matches(regex, "ABC12-xy"));
System.out.println(java.util.regex.Pattern.matches(regex, "ABCD"));
System.out.println(java.util.regex.Pattern.matches(regex, "ABC12_12"));
System.out.println(java.util.regex.Pattern.matches(regex, "12-AB_xy"));