Long getSize(File f){
long size=0;
File[] ff=f.listFiles();
for(int i=0;i<ff.length;i++){
if(ff[i].isDirectory()){
size+=getSize(ff[i]);
}else{
size+=ff[i].length();
}
}
return new Long(size);
}
long size=0;
File[] ff=f.listFiles();
for(int i=0;i<ff.length;i++){
if(ff[i].isDirectory()){
size+=getSize(ff[i]);
}else{
size+=ff[i].length();
}
}
return new Long(size);
}