JAVA foundation (Regular Expressions - Replace function)

1, regular expression substitution function

• String class functions: public String replaceAll (String regex, String replacement)

 

2, the code

    

public class Demo6_ReplaceAll {





    /**

     * * A:正则表达式的替换功能

     * String类的功能：public String replaceAll(String regex,String replacement)

     */

    public static void main(String[] args) {

        String s = "wo111ai222xiaoshuai";

        String regex = "\\d";            //\\d代表的是任意数字

        

        String s2 = s.replaceAll(regex, "");

        System.out.println(s2);

    }

}