- public static void main(String[] args) {
- String src1= "c://test.apk";
- File file = new File(src);
- DecimalFormat df = new DecimalFormat("0.00");
- String fileSizeString = "";
- if (file.length() < 1024) {
- fileSizeString = df.format((double) file.length()) + "B";
- } else if (file.length() < 1048576) {
- fileSizeString = df.format((double) file.length() / 1024) + "K";
- } else if (file.length() < 1073741824) {
- fileSizeString = df.format((double) file.length() / 1048576) + "M";
- } else {
- fileSizeString = df.format((double) file.length() / 1073741824) + "G";
- }
- System.out.println("==========>"+fileSizeString);
- }
来源: http://www.phpxs.com/code/1001829/