Is javascript frontend or backend?

886

What does double butted mean?

850

How to capture dynamic values in load runner and how Each of the captured values are to be written to a text file (c:\temp\LoadRunner1.txt)

2210

How can you make a class serializable in java?

988

Can you write a class without specifying namespace?

1140

To do safe backups what is the feature in mongodb that you can use?

1

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 are the fields in it 0007 ?

1138

How to use Jquery Plugins in ASP.Net MVC validation?

1053

How to install varnish cache?

124

the 'sizeof' operator reported a larger size than the calculated size for a structure type. What could be the reason?

1002

In C++ what is a vtable and how does it work?

1061

How do you load alternate records into different tables through mapping flow?

1867

What does the q{ } operator do?

903

In which directory all external modules and files are stored in angular 4?

1064