Java was invented by James Gosling and others at Sun Microsystems in 1994 as an object-oriented programming language with built-in APIs. It is platform independent, allows for dynamic binding and distributed applications, and is portable, multithreaded, and robust. The document discusses Java's key features and packages like java.lang and java.io, how to create user-defined packages, and provides examples of a Sudoku solver program. It concludes that Java offers type safety but needs more expressive power.

1. Submitted By:
Anshum Kumar
ECE 1
00415007320
Roll no-60

2. INTRODUCTION OF JAVA
 Java is a programming language and environment
invented by James Gosling and others in 1994.
 Java was originaly named Oak and was developed as a
part of the Green project at the Sun Company.
 Java is an object-oriented programming language with a
built-in application programming interface (API) that
can handle graphics and user interfaces and that can be
used to create applications or applets.

3. KEY FEATURES OF JAVA
 Plateform Independence
 Encapsulation
 Dynamic binding
 Robust
 Distributed
 Portable
 Performance
 Multithreaded
 Interpreted & Compiler
 Architecture Neutral

4. JAVA.LANG PACKAGE

5. JAVA.IO PACKAGE

6. CREATING A PACKAGE
 Java supports a keyword called “package” for creating
user-defined packages.
 The package statement must be the first statement in a
Java source file (except comments and white spaces)
followed by one or more classes.

7. Sudoku Solver

8. Sudoku Solver

9. CONCLUSIONS
 Java offers the real possibility that most programs can
be written in a type-safe language.
 However, for Java to be broadly useful, it needs to have
more expressive power than it does at present.

10. Thanks