Is there cast in Java similar to in C++

Question

I get in my function message array of bytes and type of object, I need to restore object from bytes. Is there in Java any cast like in C++ ?

Answer 1

here are the methods to accomplish what you want.

public static Object toObjectFromByteArray(byte[] byteArr) {
        if (byteArr == null) {
            return null;
        }

        Object resultObj = null;
        ByteArrayInputStream bin = null;
        ObjectInputStream ooin = null;
        try {
            bin = new ByteArrayInputStream(byteArr);
            ooin = new ObjectInputStream(bin);
            resultObj = ooin.readObject();
        }
        catch (Exception ex) {
            throw new RuntimeException(ex);
        }
        finally {
            try {
                if (ooin != null) {
                    ooin.close();
                }
                if (bin != null) {
                    bin.close();
                }
            }
            catch (IOException ex1) {
                ex1.printStackTrace();
            }

        }
        return resultObj;
    }

    public static byte[] toByteArray(Object obj) {
        ByteArrayOutputStream barr = null;
        ObjectOutputStream oout = null;
        byte[] bytearr = null;
        try {
            byte[] b2 = null;
            barr = new ByteArrayOutputStream(10000);
            oout = new ObjectOutputStream(barr);
            oout.writeObject(obj);
            oout.flush();
            oout.close();
            bytearr = barr.toByteArray();

        }
        catch (Exception ex) {
            throw new RuntimeException(ex);
        }
        finally {
            try {
                if (oout != null) {
                    oout.close();
                }
                if (barr != null) {
                    barr.close();
                }
            }
            catch (IOException ex1) {
                ex1.printStackTrace();
            }
        }
        return bytearr;
    }