/** * This class Shows how to get file size in Java * @param args */ public static void main(String[] args) { File file = new File("/Users/GYJ/Documents/bad_kpi.sql"); if (file.exists()) { System.out.println(getFileSizeMegaBytes(file)); System.out.println(getFileSizeKiloBytes(file)); System.out.println(getFileSizeBytes(file)); } else { System.out.println("File doesn't exists"); } }