putStream and DataOutputStream - binary file I/O RandomAccessFile - binary file i/o where every record is the same number of bytes so that you can seek to a specific record ObjectInputStream and ObjectOutputStream - read

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

What exactly about the idea of a file makes it so powerful?

createDatabaseOfProfiles(String filename) This method creates and populates the database array with the profiles from the input file (profile.txt) filename parameter. Each profile includes a persons' name and two DNA sequences. 1. Reads the number of profiles from the input file AND create the database array to hold that number profiles. 2. Reads the profiles from the input file. 3. For each person in the file 1. creates a Profile object with the information from file (see input file format below). 2. insert the newly created profile into the next position in the database array (instance variable).

If a file contains an index directory that allows for random access, what does it mean?

When a program makes use of a file, what are the three steps that it must take?

Instructions Your job is to write a program to encrypt outgoing messages and decrypt incoming messages using a Vigenere Cypher. In this assignment, you will parse a string of words from a file into tokens using the strtok_s command with pointers and then use the Vigenere Cypher algorithm to encrypt and decrypt the parsed words. Before you can perform any encryption/decryption activities, the first step is to read in messages from a file and parse the messages into individual words. The Program: Setting up classes and understanding tokenization The first step in encrypting/decrypting messages is to parse the messages into words before applying the encryption/decryption algorithms to them. This parsing process is called "tokenization." Read the contents of a file into this array using the getline command. The objective of this assignment is to demonstrate the use of pointers in a program utilizing c-strings and tokenization. The use of pointers is foundational in C++. This...