Pessimistic and Optimistic concurrency control?,

Why use rmi when we can handle the same benefits from ejb?, EJBs are distri...

EJBs are distributed elements, which need the RMI framework for object distribution. An EJB application server gives more services like object pooling, transaction management, data

Write a program using local variable, Write a program using local variable ...

Write a program using local variable Public void someMethod( ) { int x; //local variable System.out.println(x); // compile time error } - Constructor - Doesn't

Develop student portal, Develop Student Portal Project Description: T...

Develop Student Portal Project Description: Technology to be used: Java, Portlets, Liferay, functions in Oracle DB, Boostrap. We need develop two pages, a header and foote

I want to develop a chat application for j2me, I want to develop a Chat app...

I want to develop a Chat application for j2me Project Description: We require a chat application for a community website. Skills required: Java, J2ME

A talent agency program , class Writer extends Client {    // additional m...

class Writer extends Client {    // additional members    private boolean technical = false;    private boolean government = false;    private boolean international = false;    pri

How does java allocate heap and stack memory?, Each time an object is start...

Each time an object is started in Java it goes into the area of memory named as heap. The primitive variables like double and int are allocated in the stack, if they are local inst

Networking, which concept is used to connect the networking in java

which concept is used to connect the networking in java

Area under curve., write a program to find the area under the curve y=f(x) ...

write a program to find the area under the curve y=f(x) between x=a and x=b,integrate y=f(x) between the limits of a and b.   #include float start_point,

Compare an abstract class and an interface , You want the base class to rep...

You want the base class to represent only an interface for its derived classes. That means, you don't want anyone to actually instantiate an object of the parent class. You only