How to conduct sampling of soil microbes?
How can you use factory method in angularjs?
why we have and use 3 phase not 2 or 4 or other in power system?
What are the advantages of qtp?
How many ways that we can view a result set?
What are the features of kafka?
I have a scenario where the our unit of measure is Pc. The conversion is 1pc = 2.9768 m2. Now the client is saying that he will give the prices in Cubic meter. The current requiment is we have to derive a conversion ratio between pc (m2) and cbm. Please advice.
what is the difference between JSON and JSONP?
How Systems post value in Gl Account at the time of Goods received, Invoice received means what is the System Configuration or tell me the FI-MM Configuration?
What is gopath environment variable?
How data flows from co to copa? : co-pa
What is shadow ram?
How do you got about defining co-product functionality in repetitive manufacturing?
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)
Do we need to call the explicit methods to destroy the memory allocated in python?