CS PROGRAMMING PARADIGMS Regulation Lecture Notes Anna University CS PROGRAMMING PARADIGMS Lecture notes PP Notes 5TH. Anna University Fifth semester Third Year lecture Notes for Programming Paradigms CS PP free pdf! The Third Year,Fifth semester Anna. 5th semester Notes. GKM College Notes: 1. Software Engineering Programming Paradigms (PP or JAVA) (CS) (CS55) ( CS) Unit 1 – View /.
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Note that you can still create object variables of an abstract class, but such a variable must refer to an object of a nonabstract subclass.
Discipline and idea The proframming of concepts, and models of human interaction with real world phenomena Data as well as operations are encapsulated in objects Information hiding is used to protect internal properties of an object Objects interact by means of message passing A metaphor for applying an operation on an object In most object-oriented languages objects are grouped in classes Objects in classes are similar enough to allow programming of the classes, as opposed to programming of the individual objects Classes represent concepts whereas objects represent phenomena Classes are organized in inheritance hierarchies Provides for class extension or specialization.
The word ‘imperative’ can be used both as an adjective and as a noun. A method is said to be overridden when one is in parent class and another is in child class with the same name, same return type, same parameter. The benefits are the ability to share data and state between components, and to greatly improve the performance of components such as tables that display large amounts of data.
Explain the classes under 2D shapes. Elsewhere, casting the result of get to a String will cause an error. The Garbage collector cannot free those resources. A main programming paradigm stems an idea within some basic discipline which is relevant for performing computations.
Explain Constructors with examples. The toString method yields aformatted string containing all of this information. Determining the current size of one of these collections usually requires traversal. Three listener objects are added asaction listeners to the buttons.
CSE TUBE: CS / CS55 / CS – Programming Paradigms notes
Usually, icons are implemented as instances of the ImageIcon class. But there is a better way. In other words, asking for something to be done. It is automatically called at the time of object creation. You define colors with the Color class. All array types, no matter whether they are arrays of objects or arrays of primitive types, are class types that extend the Object class. It matches the type of names that is, String against the generic type T and deduces that T must be String.
Class provides four separate reflection calls to access information in different ways. The priority must be between Thread.
If the method has no parameters, an array of length 0 is returned. Instead, a different mechanism is supplied in the collections library. In java instances of the classes lrcture are actual objects Eg: Explain the comments for classes, methods, fields and link.
Explain method nofes with example program. OOP is defined as object oriented programming. Older Thread-Safe Collections Ever since the initial release of Java, the Vector and Hashtable classes provided thread-safe implementations of a dynamic array and a hash table.
Data encapsulation enables the important concept of data hiding possible. Discipline and idea Mathematics and the theory of functions The values produced are non-mutable Impossible to change any constituent of a composite value As a remedy, it is possible to make a revised copy of composite value Atemporal Time only laradigms a minor role compared to the imperative paradigm Applicative All computations are done by applying calling functions The natural abstraction is the function Abstracts a single expression to a function which can be evaluated as an expression Functions are first class values Functions are full-fledged data just like numbers, lists, Fits well with computations driven by needs Opens a new world of possibilities.
Object invoke Object proxy, Method method, Object args Whenever a method is called on the proxy object, the invoke method of the invocationhandler gets called, with the Method object and parameters of the original call. You use bit masks to test which modifiers have been set.
For example, we could have defined the Pair class with separate types for the first and second field: A class can even be declared as abstract even though it nnotes no abstract methods. Assertion checks are turned on only during development and testing. Inheritance The concept of inheritance is used to make the things from general to more specific e.
Notfs class declaration usually contains: The invocationhandler must then figure out how to handle the call. For example, the ThreadPool supports the following policies: Generic Programming- Motivation Generics are desirable because they let you write code that is safer and easier to read than code that is littered with Object variables and casts. It is stored in a hierarichical manner. Line2D Rectangle2D Ellipse2D These classes all implement the Shape interface To draw a shape, you first create an object of a class that implements the Shape interface and then call the draw method of the Graphics2D class.
That is, if a class is declared as abstract, no objects of that class can paradig,s created. For buttons, as you might expect, an action event is a button click.
Such a proxy class implements the interfaces that you specify. Discipline and idea Digital hardware technology and the ideas of Von Neumann Incremental change of the program state as a elcture of time.
cs programming paradigms notes ~ Cse cute boys and girls.
Although the old model is now deprecated, its classes are still a part of the Java library. Proogramming of the four main programming paradigms. The following Why bother with so high a level of abstraction?