In Java, when writing to a file with DataOutputStream, how do I define the Endian of the data being written?

I'm using DataOutputStream to write to a file, however I want to change the endian of the data.

This is how i'm writing the byte data to the file (it outputs in Little endian by default)

public void generateBinObjFile(String outputFile)
    try {
        // Create file

        DataOutputStream stream = new DataOutputStream(
                new FileOutputStream(outputFile));

        stream.writeShort(this.quantize(this.xComponents.get(index), //<-- Short is written in little Endian
                    this.min_x, this.max_x) - 32768);

        } // catch statements here

Is there a way i can define the Endian of how byte data is written in Java?

java io endianness

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1 Answer

all the given answers are right. You can, however, take the source of DataOutputStream, paste it into a new class, and reverse the order of bytes in the various writeShort, writeLong etc.. (or at least in the ones you need). It is not such a difficult work.

Obviously you cannot then use it to communicate with a DataInputStream on the other side, but I suppose you need to write to a file or socket with a C program on the other side, so you'll not need a DataInputStream.

answered 2011-08-11T10:38:18.603

In Java, when writing to a file with DataOutputStream, how do I define the Endian of the data being written?

1 Answer

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