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Programming language java
Web Programming with Java - Introduction to JavaAn object-oriented programming language developed by Sun Microsystems
Also a platform to support Java applications (technology)
A little bit history
1991: A team led by James Gosling at Sun Microsystems developed Oak, for use in embedded consumer electronic appliances
1995: renamed Java -redesigned for developing Internet applications (Java 1.0 1.1).
1998: Sun announced the Java 2 platform (1.2,1.3,1.4)
2005 -Now: Java 5 (Java 1.5 -newest version 1.7)
Web Programming with Java - Java BasicsIdentifiers: Names for the things you will refer to in your programs Used for programming entities as variables, constants, methods, classes, and packages Rules for naming identifiers: A sequence of characters that consists of letters, digits, underscores (_), and dollar signs ($). Cannot start with a digit. Cannot be a reserved word. Cannot be true, false, or null. An identifier can be of any length.
.Variables & Constants
Variables: used to store data in a program datatype variableName; datatype variable1, variable2, ..., variablen; Constants Represents permanent data...
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Web Programming with Java Java - Object-Oriented ProgrammingOutline Objects and Classes OOP Concepts Encapsulation Aggregation/Composition Inheritance & Polymorphism Some useful Java classes Exception Handling, I/O Readings & Exercise Discussion
.Objects and Classes Basic OO concepts Object, class, state, behavior, message Creating Java classes, objects, properties and methods Constructors Package Reference data type Variable scope
Basic OO concepts : Object
Object: any thing, which can be described by State: property, or attribute Behavior: function/action, or method: ask the object to perform a task Example A student, a desk, a circle, a button, and even a loan...
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Web Programming with Java - HyperText Markup Language BasicsClient's Functions Handle the user interface.
Translate the user's request into the desired protocol.
Send the request to the server.
Wait for the server's response.
Translate the response into "human-readable" results.
Present the results to the user.
Listen for a client's query.
Process that query.
Return the results back to the client.
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