I have to read a COM port and the data should be displayed inside the TextArea dynamically (data will come every minute), which I have created inside JPanel.
Advance Tha
For reading from the serial port, have a look at the javacomm API here: http://java.sun.com/products/javacomm/
The User's Guide has more information and some example code: http://java.sun.com/products/javacomm/reference/docs/API_users_guide_3.html
Some leads:
For a multi-platform application, look into rxtx.
javax.comm
has not had active development for a number of years. The rxtx project has a compatible api as well as a more feature rich gnu
package API.
There are examples with the source code and in the Wiki.