java判断一个文件是否为二进制文件的方法

public static boolean isBinary(File file) {boolean isBinary = false;try {FileInputStream fin = new FileInputStream(file);long len = file.length(); for (int j = 0; j < (int) len; j++) {int t = fin.read();if (t < 32 && t != 9 && t != 10 && t != 13) {isBinary = true;break;}}} catch (Exception e) {e.printStackTrace();}return isBinary;}