Add a command to this chapter’s case study program that allows the user to view the contents of a file in the current working directory. When the command is selected, the program should display a list of filenames and a prompt for the name of the file to be viewed. Be sure to include error recovery in the program. If the user enters a filename that does not exist they should be prompted to enter a filename that does exist.

The ObjectOutputStream class is used to serialize an Object. The following Serialize Demo program instantiates an Employee object and serializes it to a file. Complete the code. Write codes where asked with appropriate try catch block class SDemo { } main method { } //Create an Employee object //set a name for this employee //set employee number to 1010 //create an object of file output stream //create an object of the object output stream //write Employee info to this object of output stream //close the out stream //close the file //print statement

Python S3 Get File In the Python file, write a program to get all the files from a public S3 bucket named coderbytechallengesandbox. In there there might be multiple files, but your program should find the file with the prefix and cb - then output the full name of the file. You should use the boto3 module to solve this challenge. You do not need any access keys to access the bucket because it is public. This post might help you with how to access the bucket. Example Output ob name.txt Browse Resources Search for any help or documentation you might need for this problem. For exampler array indexing, Ruby hash tables, etc.

To read data from a text file, what kind of object should be created?

in c# i need to Write the program named DirectoryInformation that allows a user to continually enter directory names until the user types end. If the directory name exists, display a list of the files in it; otherwise, display the following message, Directory foo does not exist, to indicate the directory does not exist (foo would be the name of the directory to be checked) . Create as many test directories and files as necessary to test your program. An example of the program is shown below: Enter a directory >> lorem lorem contains the following files lorem/ipsum.txt Enter another directory or type end to quit >> foo Directory foo does not exist

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Add the ability to convert an entire message into Morse code, as well as the ability to handle a data file comprising numerous entries. Change your input validation code so that the user has an infinite number of opportunities to enter valid responses. Your program should run until the user selects the "quit" option from your menu. Add a menu option to provide the user the option of processing a data file. Add another way to exit the program. When your software starts, the menu should be the first item that appears. The menu format should be the same as in the Sample Output. Allow the user to make more menu selections until they select the option to exit. Before soliciting the user for a menu selection, always show the menu. Handle an incorrect menu option correctly. The user should have an infinite number of opportunities to enter a valid menu option. Validate the user's input for the number of words sent so that numbers less than one are not accepted. Allow the user an unlimited...

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A student wants to write into a file called myfile, without deleting its existing content. Which one of the following functions should he or she use? f = open('myfile', 'r') f = open('myfile', 'w+b') f = open('myfile', '+') f = open('myfile', 'a')

This is for Advanced Java Programming Write a test program that reads words from a text file and displays all non-duplicate words in ascending order and then in descending order. - The file is to be referenced in the program, not needing to be used as a command line reference. - The word file is to be titled collection_of_words.txt and included in your submission. Write test code that ensures the code functions correctly.

Can information be read from a text file using a predetermined kind of object?

In c programming language, read a file given a command line argument. Then print the file out with line numbers.

When coding a program that uses an input file, how would you create a new scanner object as on input file? The name of the input text file is critterinventory.txt.