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How many types of table in Oracle?
The following program reads data (details of students) from a file named students.txt and converts it into e-mail addresses. The results are written to a file named studentemail.txt. students.txt consists of a number of lines, each containing the data of a student in colon delimited format: Last Name:First Name:Student Number Each input record is converted to an e-mail address and written to studentemail.txt in the following format: the first character of the last name + the first character of the first name + the last four digits of the student number + “@myunisa.ac.za” import java.io.*; public class EmailConverter { public static void main(String[] args) throws IOException { BufferedReader input = new BufferedReader(new FileReader ("students.txt")); PrintWriter output = new PrintWriter(new FileWriter ("studentemail.txt")); String line = input.readLine(); while (line != null) { // Extract the information for each student String[] items = line.split(":"); // Generate the email address String email = "" + items[0].charAt(0) + items[1].charAt(0) + items[2].substring(4,8) + "@myunisa.ac.za"; email = email.toLowerCase(); // Output output.println(email); line = input.readLine(); } input.close(); output.close(); } } Rewrite the class so that it handles possible errors that may occur. In particular, it should do the following: • It should catch at least three appropriate exceptions that might occur, and display suitable messages. • At this stage, the program will not run correctly if there is an empty line in the input file. Change the program so that if an empty line is encountered, an exception is thrown and the empty line is ignored. This exception should be handled with the display of a suitable error message. • Before the e-mail address is added to the output file, check if the student number has 8 digits. If not, throw an InvalidFormatException (which the program should not handle itself)
What is data member in java?
Is there anyway to undelete work items in sap workflow after I have logically deleted them already?
What is mvvm in swift?
Explain about assert statement?
How do you match data in two columns?
How are the polyclonal antibodies produced?
What is pojo used for?
How do I make a list of tables?
Is sorted c++?
How to avoid duplicate entries in the forms?
What are different template components in ember.js?
What is cairnghorm in flex? How do we use it?have you worked with cairnghorn in flex?
You’ve been assigned as a project manager on a research and development project for a new dental procedure. You’ve published the scope statement and are working on the scope management plan. What is the purpose of the scope management plan? A. It describes and documents a scope baseline to help make future project decisions. B. It decomposes project deliverables. C. It describes how project scope changes will be incorporated into the project and how project scope will be managed. D. It describes how cost and time estimates can be composed for project scope changes.
