- Trending Categories
Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Physics
Chemistry
Biology
Mathematics
English
Economics
Psychology
Social Studies
Fashion Studies
Legal Studies
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
Rishi Raj has Published 127 Articles
![Rishi Raj](https://www.tutorialspoint.com/assets/profiles/13777/profile/60_73169-1512647303.jpg)
Rishi Raj
22K+ Views
A wide area network (WAN) is a computer network that covers a large geographical area comprising a region, a country, a continent or even the whole world. WAN includes the technologies to transmit data, image, audio and video information over long distances and among different LANs and MANs.The distinguishing features ... Read More
![Rishi Raj](https://www.tutorialspoint.com/assets/profiles/13777/profile/60_73169-1512647303.jpg)
Rishi Raj
43K+ Views
A number of design issues exist for the layer to layer approach of computer networks. Some of the main design issues are as follows −ReliabilityNetwork channels and components may be unreliable, resulting in loss of bits while data transfer. So, an important design issue is to make sure that the ... Read More
![Rishi Raj](https://www.tutorialspoint.com/assets/profiles/13777/profile/60_73169-1512647303.jpg)
Rishi Raj
311 Views
A copy constructor can be used to duplicate an object in Java. The copy constructor takes a single parameter i.e. the object of the same class that is to be copied. However, the copy constructor can only be explicitly created by the programmer as there is no default copy constructor ... Read More
![Rishi Raj](https://www.tutorialspoint.com/assets/profiles/13777/profile/60_73169-1512647303.jpg)
Rishi Raj
2K+ Views
Method overloading in a class contains multiple methods with the same name but the parameter list of the methods should not be the same. One of these methods can have a long parameter in their parameter list.A program that demonstrates this is given as follows −Example Live Democlass PrintValues { ... Read More
![Rishi Raj](https://www.tutorialspoint.com/assets/profiles/13777/profile/60_73169-1512647303.jpg)
Rishi Raj
185 Views
The Matcher.find(int) method finds the subsequence in an input sequence after the subsequence number that is specified as a parameter. This method is available in the Matcher class that is available in the java.util.regex package.The Matcher.find(int) method has one parameter i.e. the subsequence number after which the subsequence is obtained ... Read More
![Rishi Raj](https://www.tutorialspoint.com/assets/profiles/13777/profile/60_73169-1512647303.jpg)
Rishi Raj
864 Views
A variable cannot be modified after it is declared as final. In other words, a final variable is constant. So, a final variable must be initialized and an error occurs if there is any attempt to change the value.A program that demonstrates a final variable in Java is given as ... Read More
![Rishi Raj](https://www.tutorialspoint.com/assets/profiles/13777/profile/60_73169-1512647303.jpg)
Rishi Raj
13K+ Views
A thread can be created by implementing the Runnable interface and overriding the run() method.The current thread is the currently executing thread object in Java. The method currentThread() of the Thread class can be used to obtain the current thread. This method requires no parameters.A program that demonstrates this is ... Read More
![Rishi Raj](https://www.tutorialspoint.com/assets/profiles/13777/profile/60_73169-1512647303.jpg)
Rishi Raj
566 Views
The Vector elements can be traversed using the Enumeration interface. The method hasMoreElements( ) returns true if there are more elements to be enumerated and false if there are no more elements to be enumerated. The method nextElement( ) returns the next object in the enumeration.A program that demonstrates this ... Read More
![Rishi Raj](https://www.tutorialspoint.com/assets/profiles/13777/profile/60_73169-1512647303.jpg)
Rishi Raj
77 Views
A Vector can be cloned using the java.util.Vector.clone() method. This method does not take any parameters but returns a clone of the specified Vector instance as an object.A program that demonstrates this is given as follows −Example Live Demoimport java.util.Vector; public class Demo { public static void main(String args[]) { ... Read More
![Rishi Raj](https://www.tutorialspoint.com/assets/profiles/13777/profile/60_73169-1512647303.jpg)
Rishi Raj
394 Views
Elements can be added in the middle of a Vector by using the java.util.Vector.insertElementAt() method. This method has two parameters i.e. the element that is to be inserted in the Vector and the index at which it is to be inserted. If there is an element already present at the ... Read More