替换字符串中符合正则表达式规则的子串

Posted 2020-11-28 yxfyg

import java.util.regex.*;

public class RegReplace{

    public static void main(String[] args){
        
        Pattern p = Pattern.compile("java",Pattern.CASE_INSENSITIVE);
        Matcher m = p.matcher("jaVa JAva I love JAVa");
        System.out.println(m.replaceAll("java"));
        
    }

}