This code shows how to execute linux/DOS command using java

This Code Demonstrates how to generate a report by using jasper. change the database properties in code. and change the table name and entities in the jrxml files. here it uses two jrxml files and generates all types of reports. but we need to set the class path for all required libraries commons-beanutils.jar

This code show how to use velocity frame work.in velocity frame work we need .vm file which taken by velocity engine.

This is code is useful for reading the data from Excel sheet

This Code is useful for password encryption

Code for checking a number which is Credit Card Number or not? This is code is for checking the credit card no is correct or not

It is the enhancement of the concept of inheritance. When a subclass is derived from a derived class then this mechanism is known as the multilevel inheritance. The derived class is called the subclass or child class for it's parent class and this parent class works as the child class for it's just above

This is a multilevel inhertance in java where number of methods can be created and accessed any where in the class a1 in the main class is the new object. here class A is inherited by both B and C i and j can be accessed from the method lmn.

This program comprises of using a inhertance in java as shown in the program. A is the class, B is the another class. class A is inherited by the class B.

This program comprises of creating two objects for our own class shown below. Here A is the main class a1,a2 are the objects created for the class.