thanks for the quick reply!, I made the changes and the output is:


Please enter the name of the existing file:
old.txt
Please enter the name of the new file:
new.txt
Choose from the following choices:
1 - Exit the program.
2 - Overwrite the existing file
3 - Enter a new name for the file
Enter a number:
3
Enter a new name for the new file:
java.io.FileNotFoundException: (No such file or directory)
at java.io.FileOutputStream.open(Native Method)
at java.io.FileOutputStream.<init>(FileOutputStream.java:212)
at java.io.FileOutputStream.<init>(FileOutputStream.java:104)
at java.io.PrintWriter.<init>(PrintWriter.java:184)
at project4.Project4.main(Project4.java:79)