why java not supproting multiple inheritance?

Answer Posted / aman kr. aggarwal

well as in c++ we have multiple inheritance, but not in java

becz if it is their then having method of same signature
(means same return type, list of paraments, access
specifiers) in 2 different classes and both r extended by
some class AA then while calling method in base class, it
would break down the jvm that to which classes method to be
called.
EX:-
class BB
{
public void a(int x)
{
System.out.println("call from BB");
}
}
class CC
{
public void a(int x)
{
System.out.println("call fro CC");
}
}
class AA extends BB,CC
{
a(5);
}

Is This Answer Correct ?    6 Yes 1 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Is void a wrapper class?

739


Why java is platform independent? Explain.

794


What happens if an exception is throws from an object's destructor?

804


Can we overload the methods by making them static?

744


Why do we create threads in java?

809


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)

1701


What is default locale java?

797


What is the difference between method and means?

801


What is the static variable?

807


Can a class have a static inner class?

821


Explain about method local inner classes or local inner classes in java?

779


What is a condition in programming?

749


What are the access modifiers in java?

801


What is nullpointerexception in java?

746


What is null object in java?

779