How to access randomly in Java's RandomAccessFile class

1. Process

(1) Can act as an input stream or dilute an output stream

(2) Supports reading from the beginning of the file , write

(3) Support reading and writing (insertion) from any location

(4) The RandomAccessFile class needs to specify the access mode:

2. Example

    public void RandomAccessFile(String src, String srcMode, String dest, String destMode) {
        RandomAccessFile accessFile = null;
        RandomAccessFile accessFile1 = null;
        try {
            accessFile = new RandomAccessFile(new File(src), srcMode);
            accessFile = new RandomAccessFile(new File(dest), destMode);
            byte[] bytes = new byte[1024];
            int length;
            while ((length = accessFile.read(bytes)) != -1) {
                accessFile1.write(bytes, 0, length);
            }
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            if (accessFile != null)
                try {
                    accessFile.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
 
            if (accessFile1 != null) {
                try {
                    accessFile1.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
    }

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