public static byte[] intToByteArray1(int value) {
            byte[] b = new byte[4];
            for (int i = 0; i < 4; i++) {
                int offset = (b.length - 1 - i) * 8;
                b[i] = (byte) ((value >>> offset) & 0xFF);
            }
            return b;
        }
    

или

    public static final byte[] intToByteArray(int value) {
        return new byte[] {
                (byte)(value >>> 24),
                (byte)(value >>> 16),
                (byte)(value >>> 8),
                (byte)value};
    }

 public static byte[] intToByteArray1(int value) {
            byte[] b = new byte[5];
            for (int i = 0; i < 5; i++) {
                int offset = (b.length - 1 - i) * 8;
                b[i] = (byte) ((value >>> offset) & 0xFF);
            }
            return b;
        }
    

или

    public static final byte[] intToByteArray(int value) {
        return new byte[] {
           (byte)(value >>> 32),
                (byte)(value >>> 24),
                (byte)(value >>> 16),
                (byte)(value >>> 8),
                (byte)value};
    }

        String text="99999";
       int in=Integer.parseInt(text);
      byte[] price=intToByteArray(in);
    System.out.println(bytesToHexString( price));