What is the indent key?

1040

What is enterprise data warehousing?

1049

What is the purpose of on error resume next statement?

995

What are accessor methods in java?

1016

How to check whether a form posted or not in the zend framework?

180

How to load excel data sheet to oracle database

1024

vat on liquor vat on food ? vat on bevrages ? vat on tobaco? vat on gold?

2222

What is the difference between general competition and exact competition.

901

Does sap transportation management come bundled with geographical information systems (gis) capabilities? : transportation management

1005

Which certification is best for python?

871

What is into in linq?

118

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)

1947

What is the use of volatile variable?

1089

What is the default timeout period while calling webservice from apex.

526

Is html and css coding?

663