To write a program applying the concepts of file input /output.

problem statement

write an application that implements a simple text editor. use a text field and a button to get the file. read the entire file as characters and display it in a textarea. the user will then be able to make changes in the text area. use a save button to get the contents of the text area and write that over the text in the original file.

hint: read each line from the file and then display the line in the text area using a method, maybe called appendtext(astring). a method, maybe called gettext, will return all of the text area in a string that then can be written to the file.