Algorithm Steps:

Step 1: Import all necessary packages and classes

Step 2: Define a class that extends frame and implements action listener

Step 3: Declare two text fields and a text area then declare labels for them

Step 4: Declare a button

Step 5: In the class constructor do the following:

             i) Create the text fields, text area, and the labels

             ii) Set the layout of the frame to border layout

            iii) Add the controls to the frame

            iv)  Add action listener to the button

            v) Add window listener to the frame which listens to a window adapter object

Step 6: In the actionPerformed() method, add the text of all the text fields to the text area

Step 7: In the main method () create a frame, set its size and the make it visible

Step 8: Define a Window Adapter class and handle the window closing event