Method readDate

base/src/main/java/net/time4j/SPX.java:295–322

(
        DataInput in,
        byte header
    )

    }

    private PlainDate readDate(
        DataInput in,
        byte header
    ) throws IOException {

        int month = header & 0xF;
        int header2 = in.readByte();
        int range = (header2 >> 5) & 3;
        int day = header2 & 31;
        int year;

        switch (range) {
            case 1:
                year = in.readByte() + 1850 + 128;
                break;
            case 2:
                year = in.readShort();
                break;
            case 3:
                year = in.readInt();
                break;
            default:
                throw new StreamCorruptedException("Unknown year range.");
        }

        return PlainDate.of(year, Month.valueOf(month), day);

    }

    private void writeTime(DataOutput out)
        throws IOException {