Can't parameter be passed in this way?

Question

i wrote a method like this:
dis=new DataInputStream(socket.getInputStream());
byte[] inByte=new byte[20];
dis.read(inByte); //read "am" from client side
String inData=new String(inByte); //pass "am" to inData
     String outData=response(inData); //now inData is "am"
     System.out.println("outData= "+outData);
public String response(String inData) throws Exception {
          String outData=null;
          if(inData.equalsIgnoreCase("am"))outData="good morning";
          else outData="unknown";
          return outData;
at last i got "outData=unknown" ,why it's not "good morning"?

Answer 1

IN CLIENT SIDE:
String outData="am";          
DataOutputStream dos=new DataOutputStream(s.getOutputStream());               
byte[] outByte=outData.getBytes();
System.out.println(outByte); //OUTPUT : "[B@dc8569"  IS  WRONG  HERE ?
dos.write(outByte,0,outByte.length);  //pass "am" to server side
IN SERVER SIDE:
int num=dis.read(inByte);    //read from client side
System.out.println("num read : "+num); //OUTPUT:  2
String inData=new String(inByte);
System.out.println("inData: "+inData);//OUPUT:  "am" ,
                                                                   //so "am" is successfully passed to server                                                                                           
String outData=response(inData);     //so how strange this outData is!
System.out.println("outData: "+outData);//OUTPUT:  "unknown"