convert little Endian file into big Endian

Question

how can i convert a liitle Endian binary file into big Endian binary file. i have a binary binary written in C and i am reading this file in Java with DataInputStream which

Answer 1

The two functions below swap between the endianness of a 2 and 4 bytes.

static short Swap_16(short x) {

    return (short) ((((short) (x) & 0x00ff) << 8) | (((short) (x) & 0xff00) >> 8));
}

static int Swap_32(int x) {
    return ((((int) (x) & 0x000000ff) << 24)
            | (((int) (x) & 0x0000ff00) << 8)
            | (((int) (x) & 0x00ff0000) >> 8) | (((int) (x) & 0xff000000) >> 24));
}