Java 常用方法（自己用—_—!）

目标文件夹内的文件过滤

private static void FileFilter(String filePath,final String str ){File dir = new File(filePath);if(dir.exists()&&dir.isDirectory()){File[] fileList = dir.listFiles(new FilenameFilter() {@Overridepublic boolean accept(File file, String partName) {return partName.endsWith(str);}});System.out.println(java.util.Arrays.toString(fileList));}}