How do you check if a cell contains a specific text in excel?

583

What Are The Three Cost Factors Involves In Cloud Data Center?

713

How do you search for wildcards?

512

Does anyone still use microsoft access?

869

What is difference between spark and mapreduce?

255

Explain me what is extended star schema?

904

Difference between reset.css and normalize css?

774

How do you copy conditional formatting in excel?

639

How to restrict page errors display in a JSP page?

929

What is the purpose of bleeder resistance in a rectifier circuit using l-c filter?

1000

How would you compensate for the lack of experience you have for this position

1110

What is the use of quality control chart type? What does it specify?

779

List out the types of result in mvc?

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)

1878

What is oops in java?

958