入門 1

@Override
    public void onClick(View arg0) {
     MyClientTask myClientTask = new MyClientTask(
       editTextAddress.getText().toString(),
       Integer.parseInt(editTextPort.getText().toString()));
     myClientTask.execute();
    }};

先這樣記：建立(MyClientTask)一個物件(myClientTask)，並給初始值(new MyClientTask()) keyword: inner class

public class MyClientTask extends AsyncTask {
  
  String dstAddress;
  int dstPort;
  String response = "";

  MyClientTask(String addr, int port)  /*建構子，會先執行初使化*/
  { 
   dstAddress = addr;
   dstPort = port;
  }
  ...
  ...
  ...

ref : Android Server/Client example - client side using Socket