what is a package?
- 11 Answers
- 12253 Views
- I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / kavitha
The package is a Java namespace or part of Java libraries.
The Java API is grouped into libraries of related classes
and interfaces; these libraries are known as packages.
You can create your own packages to bind all ur classes at
one place.
| Is This Answer Correct ? | 6 Yes | 0 No |
Package in java is a collection of classes and interfaces
that can be reused in any application or applet.
| Is This Answer Correct ? | 5 Yes | 0 No |
Answer / devarathnam c,kotagudibanda(po
Hi...
A package is nothing but collections of classes and
interfaces.
example:java.lang,java.util,java.applet,java.awt,java.net,ja
va.io etc...
| Is This Answer Correct ? | 3 Yes | 0 No |
Answer / sudhakar
Java provides a mechanism for partitioning the class name
space into more manageable chunks. This mechanism is the
PACKAGE.
| Is This Answer Correct ? | 3 Yes | 1 No |
Answer / mahipal reddy.kaitha,hyd
A Package is a collection of Classes Interfaces that
provides a high-level layer of access protection and name
space management.
| Is This Answer Correct ? | 0 Yes | 0 No |
Answer / ravikiran
package defines a name space for members and methods inside
a class
| Is This Answer Correct ? | 0 Yes | 0 No |
Answer / ramesh
A package in java is an encapsulation mechanism that can be
used to group related classes,interfaces,and subpackages.
| Is This Answer Correct ? | 0 Yes | 0 No |
Answer / shripal
package is a collection of classes and interfaces.
whatever classes we used in program they are belongs to the
particular package which we have defined
| Is This Answer Correct ? | 0 Yes | 0 No |
Answer / pooja
a package is nothing but a folder in which there are a
collection of classes and interfaces.
of course it is a folder , a folder which is created
explicitly is not a package .
the keyword used for creation of package is "package"
syntax:package <package_name>;
compilation syntax:javac -d path file_name.java;
| Is This Answer Correct ? | 0 Yes | 0 No |
Answer / kamruz
package is a namespace,for organising classes and interface in a logical manner
| Is This Answer Correct ? | 0 Yes | 0 No |
How do you format in java?
What is a boolean output?
What is final keyword in java? Give an example.
What is the difference between add() and addElement() method in Vector Class ?
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)
What is class level lock ?
What is a method in java?
Can a class have a static inner class?
What is JVM ?
4 Answers Phantom Technologies, TCS,
What is the maximum size of array in java?
What is a class component?
what is the difference between abstract class and Interface?where we can use it in realtime projects?
23 Answers Agile Software, Cognizant, IBM, Innodata, Logica CMG, Mitosis, Nagarro, Value Chain,
Core Java 
