Question

Problem 2. File Processing Write a Java class named ReplaceText that accepts command line arguments. There are four arguments: • args[0]: the source file's name • args[1]: the target files' name • oldString: a string representing a pattern of a string. For example, any string contains the "land" substring to be "LAND". • newString: the updated string The program will write the entire context in the source file to the target file, and replace all the appearances of the old string to be the new string. Ask the user to re-enter the commands if the arguments are not of the valid format. Quit the problem if the source file does not exist, or the target file has already existed.

          Problem 2. File Processing
Write a Java class named ReplaceText that accepts command
line arguments. There are four arguments:
• args[0]: the source file's name
• args[1]: the target files' name
• oldString: a string representing a pattern of a string.
For example, any string contains the "land" substring to
be "LAND".
• newString: the updated string
The program will write the entire context in the source file to
the target file, and replace all the appearances of the old string
to be the new string.
Ask the user to re-enter the commands if the arguments are
not of the valid format.
Quit the problem if the source file does not exist, or the target
file has already existed.

Problem 2. File Processing
Write a Java class named ReplaceText that accepts command
line arguments. There are four arguments:
• args[0]: the source file's name
• args[1]: the target files' name
• oldString: a string representing a pattern of a string.
For example, any string contains the "land" substring to
be "LAND".
• newString: the updated string
The program will write the entire context in the source file to
the target file, and replace all the appearances of the old string
to be the new string.
Ask the user to re-enter the commands if the arguments are
not of the valid format.
Quit the problem if the source file does not exist, or the target
file has already existed.

Added by Jaime J.

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