I am working on a network device and catching packets from it over network as UDP. In some parts i need to parse a byte array (packetBuffer) to get session header but i couldn't. I found a part of code but unfortunatelly it is C sharp and i also couldn't convert it to java. It is like below;

MemoryStream memstream = new MemoryStream(packetbuffer);
BinaryReader binreader = new BinaryReader(memstream);

byte[] sessionheader = binreader.ReadBytes(4);
ushort ROapdu_type = correctendianshortus(binreader.ReadUInt16());

I need to find what MemoryStream and BinaryReader in C# equivalent in Java is.

I appreciate for all your helps.

CodePudding user response：

you can use getData to get byte[], then extract 4 bytes from the result array and use ByteBuffer.wrap(result4Byte).getInt() to convert it into int(you may need to use order to set byte ordering to little/big endian)