Interested to Buy Any Domain ? << Click Here >> for more details...
class A
{
class B
{
psvm(String args[])
{
}
}
}
if the prg saved in A.java whats the o/p?
- 7 Answers
- 13441 Views
- HCL, TCS, I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / kalpana
output
-------
Inner classes cannot have static declarations
| Is This Answer Correct ? | 14 Yes | 0 No |
Answer / amulkumar
Compiletime Error saying----
The method main cannot be declared static; static methods
can only be declared in a static or top
level type
| Is This Answer Correct ? | 11 Yes | 0 No |
Answer / venkat
We can save it as A.java because there the main is included
in this class, And this also is not closed until the main
finction.
| Is This Answer Correct ? | 0 Yes | 0 No |
Answer / hitesh kumar
Compilation error:-
The method main cannot be declared static; static methods
can only be declared in a static or top level type.
To make it happen you need to declare class B as static
class A{
static class B{
psvm(String arg[]){}
}
}
| Is This Answer Correct ? | 0 Yes | 0 No |
Answer / chanchal
Compilation error:-
Becouse Inner classes cannot have static declarations
| Is This Answer Correct ? | 0 Yes | 0 No |
The above code will be compiled succcessfully.
but at runtime it will throw an exception :
Exception in thread "main" java.lang.NoSuchMethodError: main
Because, Java Environment starts its execution from main
method. That method must be declared in the class which is
we are using to save our code.
If any query let me know....
| Is This Answer Correct ? | 2 Yes | 6 No |
Can we extend a class with private constructor?
Why Java is a platform independent language?
what is meant by HQL?
What is java string pool?
How to run a JAR file through command prompt?
what is web.xml?and its use?
I have 2 objects inside one object(vector). how can i serialize one of them. I dont want to serialize the second one
What is return keyword in java?
how to convert Java project into Maven ?
What are reference variables in java?
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)
How do you achieve polymorphism in java?
Core Java 
