/**
* 转换文件大小
*
* @param fileS
* @return B/KB/MB/GB
*/
public static String formatFileSize(long fileS) {
java.text.DecimalFormat df = new java.text.DecimalFormat("#.00");
String fileSizeString = "";
if (fileS < 1024) {
fileSizeString = df.format((double) fileS) + "B";
} else if (fileS < 1048576) {
fileSizeString = df.format((double) fileS / 1024) + "KB";
} else if (fileS < 1073741824) {
fileSizeString = df.format((double) fileS / 1048576) + "MB";
} else {
fileSizeString = df.format((double) fileS / 1073741824) + "G";
}
return fileSizeString;
}
java convert file size
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Origin blog.csdn.net/u010689853/article/details/114176364
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