The reason we use Java

1. Computer world
Real World
Real world consists of situations, problems and opportunities.
We have to solve the problems with the help of the computer.
The computer is designed to help us solve problems.
The real world consists of fields, trees and objects.
The computer world consists of computing devices such as 8085, 80486, Intel
centrino, Pentium processors etc.
The real world consists of organizations such as banks, pf offices, companies etc.
We can use computer languages such as Assembly language, Machine language, C,
C++, FORTRAN, Simula-67, Lisp, Java etc to solve a problem.
We can make samples and types of these real world objects in OOPS. These are
called classes and objects.
An object in OOPS computer represents an object in the real world. We have types
of objects. The same type of objects can be grouped together and these are called
classes.
An object in the real world has characteristics. These characteristics are captured in
the computer by using state, behavior and identity.

6. Why Java succeeds –
- Understanding, expression and description of systems are easier
- Libraries are used easily
- Handling errors is simple
- Large systems programming is easy
- Java vs C++ -- Exception handling is easy, pointers is omitted