How will you explain machine learning into a layperson?

5

What is the formula to remove duplicates in excel?

4

What do you understand by Kurtosis() and Skew() functions?

1

What is the use of the formatdatetime function in the vbscript language?

93

What is an orthogonal base class in c++?

134

What are different levels of security in salesforce? : salesforce sharing and security

3

What linus torvalds created?

88

What are the css3 modules?

20

Can I use com components from .net programs?

109

How can I instantiate and load a new CachedRowSet object from a non-JDBC source?

133

If you see the value for reloads is high in the estat library cache report is this a matter for concern?

1

How to Change the display mode settings in code?

991

The user wants to create like a time table in BEX but when the open BEX its showing empty screen . in this situation what will u do.. And How will solve u …What r the steps u will take the to solve the solution..

1518

What is a vsam dataset?

128

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)

994