import java.io.*;
public static void copyFile(File src, File dest, int bufSize,
boolean force) throws IOException {
if(dest.exists()) {
if(force) {
dest.delete();
} else {
throw new IOException(
"Cannot overwrite existing file: " + destName);
}
}
byte[] buffer = new byte[bufSize];
int read = 0;
InputStream in = null;
OutputStream out = null;
try {
in = new FileInputStream(src);
out = new FileOutputStream(dest);
while(true) {
read = in.read(buffer);
if (read == -1) {
break;
}
out.write(buffer, 0, read);
}
} finally {
if (in != null) {
try {
in.close();
}
finally {
if (out != null) {
out.close();
}
}
}
}
}