This article recommends [TOOLFK] online- JAVA code execution tool, provides JAVA code online execution function. Website name: ToolFk website link: https://www.toolfk.com/Tool link: https://www.toolfk.com/tool-online-run-java Code teaching This tool [online JAVA code execution tool] depends on the Docker Java image STEP 1 interface STEP2 The execution code is as follows static function dockerRunJava ($code) { $ext = "java" ; preg_match( "/public\s*class(.*)\s*[extends|implement]*{/" ,$code,$matches); $filename = "" ; if ($matches){ $filename = trim($matches[ 1 ]); } list ($base_url,$filename) = self ::runWriteFile( "Java" ,$code,$ext,$filename); $build_name = str_replace( "." .$ext, "" ,$filename); $full_path = $base_url. ...