What is windows cortana?

458

What is the diffrence between a local-tx-datasource and a xa-datasource? Can you use transactions in both?

574

Explain how sap gui handles output screen for the user.

554

how to connect with oracle 9i with server in socket program in c/c++

1851

Define what are rules to follow in WordPress plugin development?

124

What is an indexer in c#?

547

Define graph traversals?

536

What is elasticity and explain its types?

621

Explian File steps in ODI?

291

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)

1459

What are histogenesis?

1

What are images. Why are they used. ?

375

What is rule of seven in project management?

112

what is meant by neutral compensation factor and where it is used

1455

Explain how you can run rails application without creating databases?

447