How can one create a VM in Azure CLI?

588

Can anybody help by describing each and every step in short, used while giving a building layout by total station? Regards

2029

Why do we need wpf?

211

Can pages have categories in wordpress?

161

is delete operation supported in an esds? Is rewrite operation possible in esds?

1111

What are the advantages of microsoft access?

897

How do you use beyond compare?

908

What are data types in C#?

991

tell about your areas of interest for one minute.

1106

How can you check the installed version of node js?

793

What are the excel formula symbols?

675

Why is technology added to the Banking Sector?

1126

What does mysql flush hosts do?

895

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)

1950

How do you you check the return code of a command in perl?

987