尝试使用此正则表达式（仅单行注释）：
String src ="How are things today and is your pre working?";String result=src.replaceAll("/\*.*?\*/","");//single line commentsSystem.out.println(result);REGEX解释：
从字面上匹配字符
“ /”
从字面上匹配字符
“ *”
“。”匹配任何单个字符
“ *？”在0到无限制的时间之间，尽可能少的时间，根据需要扩展（延迟）
从字面上匹配字符
“ *”
从字面上匹配字符
“ /”
另外，这里是通过添加（？s）来表示单行和多行注释的正则表达式：
//note the added n which wont work with previous regexString src ="How are things today and is your pre working?";String result=src.replaceAll("(?s)/\*.*?\*/","");System.out.println(result);
