Abstract Classes and Abstract Methods.

In this article,Abstract Classes and Abstract Methods is explained in detail with examples.
An abstract is a keyword,use as a modifier in java programming in two situations.

• Abstract methods.
• Abstract classes.

Abstract Methods

A method in a class which is incomplete without a body is known as an abstract method or incomplete method or non-concrete method.

Ex

public void method1();

public void display();

such methods are designated with the keyword "Abstract".

Packages in Java.

In this article,Packages in Java is explained in detail with examples.
A package is the collection of Java programs in compiled format(.class files) grouped together as a single unit.

How project delivered to the client using packages in Java.

• Develop java program.
• compile the programs.
• .classfiles.
• All class files are grouped together in a folder directory known as PACKAGE.
• This package is compressed using .Jar file..
• .Jar file is delivered to clients.

Business "Past and the present"

Hi, I am Vijay from Javaform, one of the leading study blogs. In this article, you know about Business "Past and the Present". I want to share a few things about "Today's business domain and of the past”.

Life cycle of a Thread.

In this article,Life cycle of a Thread is explained in detail with examples.

Runnable Interface in Multi-Threading.

In this article,Runnable Interface in Multi-Threading is explained in detail with examples.
We perform Multi-threading using "Thread class" in basic 4 Steps.In situations,when we already have the inheritance in our program.(From topic Runnable Interface in Multi-Threading)

Ex

A->B

class B extends A

{---

----

}

Now to perform Multi-Threading in class B(Subclass) using Thread class is not possible because java doesn't support Multiple Inheritance of two base classes.