Answer / anjani kumar jha

There are four access specifiers are available in java

Public-----------access to all

Private---------limited to class only

Protected---------limited to sub package of class

Default------------limited to same package

Answer / hani

4

Answer / ashish shinkar

there are 4 access specifier in java
1: private
2: default
3: protected
4: public

Answer / geethanjali

4

Answer / kunal

There are atleast 11 access specifiers..
public , private , protected , default , final , volatile, static,transient, abstract, native, synchronized in java

Answer / crimohan

in java only access modifiers are present.there is no access specifiers in java

Answer / gyana

there are four access specifier in java.they are

public - means the the properties of class is accessable
to all other classes.
private- means the the properties of class cannot
accessable to any other classes.
protected- means the properties of class will acessed only
to its subclasses,not subclasses of its subclasses.
no access - mean you can access it with in the class.

Answer / umanath

Namely 4, but functionally 5
public--------------access to all

protected-----------limited to any class in same package and
sub class of any package

friendly(default)---limited to same package only

private protected---limited to sub classes of any package only

private-------------limited to same class only

Answer / suresh

4

Answer / joshua deku

There are 4 access specifiers in java
1.public
2.private
3.protected
4.private

What are the limitations of procedural programming approach?

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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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What are internal variables?

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When you declare a method as abstract method ?

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What is the nested interface?

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