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Is java pure object oriented or not? if yes, give the valid
reason.
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Answer / mishal tripathi
No, it is not purely object oriented because of primitive
data types.
| Is This Answer Correct ? | 30 Yes | 15 No |
Answer / seshu godavarthi
java is not pure object oriented programming language,becoz
datatypes in java are not objects
| Is This Answer Correct ? | 20 Yes | 12 No |
Answer / vasavi
Java is pure object oriented because java will allow the
data representation inside the classes only.
| Is This Answer Correct ? | 18 Yes | 10 No |
Answer / shyam
yes java is object oriented because primitive data types are declaring inside class only
| Is This Answer Correct ? | 2 Yes | 0 No |
Answer / kumaresh
yes,java is pure object oriented language...
because all our codes are written within the class.
| Is This Answer Correct ? | 2 Yes | 1 No |
Answer / narender gusain
Yes, java is a pure object oriented language b'coz it contain wrapper class whose function is to use the primitive data type as an object.
| Is This Answer Correct ? | 3 Yes | 2 No |
Answer / vino
yes,java is pure object oriented.because each main should
enclosed with one class.the class comes under the object
oriented concept only.
| Is This Answer Correct ? | 3 Yes | 3 No |
Answer / supriya
No,
1.Primitive data types are present
2.Multiple inheritance is not support which is OOPs concept.
| Is This Answer Correct ? | 3 Yes | 3 No |
Answer / siva parvathi
yes,yes,java is pure object oriented language...
because all our codes are written within the class.
| Is This Answer Correct ? | 1 Yes | 1 No |
Answer / raamnaresh reddy.r
No,
Reason 1:- All predefined types are not Objects.
Example:- int a=10;
Reason 2:- All operations performed on objects are not
only through methods exposed at the objects but also we can
perform directly ., for example ., we can replace String
concatenate method concat() by '+'.,
Example:- String a="JAVA"+"notfullyOOL";
| Is This Answer Correct ? | 1 Yes | 2 No |
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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)
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