Structured Programming and Object-Oriented Programming

During the 1970s and into the 80s, the primary software engineering methodology was structured programming. The structured programming approach to program design was based on the following method:
? To solve a large problem, break the problem into several pieces and work on each piece separately; ? to solve each piece, treat it as a new problem that can itself be broken down into smaller problems; ? repeat the process with each new piece until each can be solved directly, without further decomposition. ? in the early 1980s. The concept has been developed since then into a central platform of software engineering called object-oriented programming, often abbreviated as OOP.
Java
• A programming language specifies the words and symbols that we can use to write a program • A programming language employs a set of rules that dictate how the words and symbols can be put together to form valid program statements • The Java programming language was created by Sun Microsystems, Inc. • It was introduced in 1995 and it s popularity has grown quickly.
Java is an object-oriented programming language developed by Sun Microsystems. Originally the developers of Java intended to use C++ for their software development. But they needed a language that could execute on different sets of computer chips to accommodate the everchanging consumer electronics market. So they decided to design their own language which would be independent of the underlying hardware.
It allows a user to receive software from a remote system and execute it on a local system, regardless of the underlying hardware or operating system. An interpreter and runtime are called the Java Virtual Machine which insulates the software from the underlying hardware.