ppt presentation topics in java

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• Adam Marcus

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• Electrical Engineering and Computer Science

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Introduction to programming in java, lecture 1: types, variables, operators.

Lecture presentation on programming in Java. Topics include: the computer, CPU instructions, programming languages, Java, program structure, output, types, variables, and operators.

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Powerpoint Templates and Google slides for Java

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Introduction to �Object Oriented Programming�

Gayathri Namasivayam

Introduction to OOP

• Why use OOP?
• Building blocks of OOP
• What is OOP?
• OOP concepts
• Abstraction
• Encapsulation
• Inheritance
• Polymorphism
• Advantages vs Disadvantages
• Object Oriented Programming (OOP) is one of the most widely used programming paradigm
• Why is it extensively used?
• Well suited for building trivial and complex applications
• Allows re-use of code thereby increasing productivity
• New features can be easily built into the existing code
• Reduced production cost and maintenance cost
• Common programming languages used for OOP include C++, Java, and C#

Building Blocks of OOP: Objects & Classes

• Object: models a
• Real world object (ex. computer, book, box)
• Concept (ex. meeting, interview)
• Process (ex. sorting a stack of papers or comparing two computers to measure their performance)
• Class: prototype or blueprint from which objects are created
• Set of attributes or properties that describes every object
• Set of behavior or actions that every object can perform
• Set of data (value for each of its attribute)
• Set of actions that it can perform
• An identity
• Every object belongs to a class

Real World Example of Objects & Classes

Object: FordCar1

Start, Accelerate, Reverse, Stop

Color: Yellow

Type: Coupe

Model: Mustang

Cylinder: 6

Color, Type, Model, Cylinder

Class: FordCar

Color: Orange

Model: Focus

Cylinder: 4

Object: FordCar2

Another Real World Example..

Name, Height, Age

Speak, Listen, Eat, Run, Walk

Class: Person

Object: Person1

Height: 5’ 4”

Height: 5’ 9”

Object: Person2

• A class is a set of variables (to represent its attributes) and functions (to describe its behavior) that act on its variables

Class ShippingBox

int shipping_cost() {

return cost_per_pound*weight;

sender_name : string

receiver_name : string

cost_per_pound : int

weight : int

shipping_cost() : int

• Object is an instance of a class that holds data (values) in its variables. Data can be accessed by its functions

Objects of ShippingBox class

sender_name = Jim

receiver_name = John

cost_per_pound = 5

weight = 10

shipping_cost()

Object BoxB

Object BoxA

sender_name = Julie

receiver_name = Jill

cost_per_pound = 2

• Paradigm for problem solving by interaction among objects
• It follows a natural way of solving problems
• Ex. Ann wants to start her car

(1) Ann walks to her car

(2) Ann sends a message to the car to start by turning on the ignition

(3)The car starts

Problem Solving in OOP

Problem: Ann wants to start her car

Color = Yellow

Type = Coupe

Model = Mustang

Cylinder = 6

Accelerate()

Object Ann’s car

• Extracting essential properties and behavior of an entity
• Class represents such an abstraction and is commonly referred to as an abstract data type

Ex. In an application that computes the shipping cost of a box, we extract its properties: cost_per_pound, weight and its behavior: shipping_cost()

Shipping Box

Sender’s name,

Receiver’s name,

Cost of shipping per pound,

Calculate shipping cost

sender_name

receiver_name

cost_per_pound

shipping_cost ()

• Mechanism by which we combine data and the functions that manipulate the data into one unit
• Objects & Classes enforce encapsulation
• Create new classes (derived classes) from existing classes (base classes)
• The derived class inherits the variables and functions of the base class and adds additional ones!
• Provides the ability to re-use existing code

Inheritance Example

BankAccount CheckingAccount SavingsAccount

customer_name : string

account_type : string

balance : int

insufficient_funds_fee : int

deposit() : int

withdrawal() : int

process_deposit() : int

interest_rate : int

calculate_interest() : int

CheckingAccount

SavingsAccount

BankAccount

• Polymorphism*

(* To be covered in the next class)

Disadvantages of OOP

• Initial extra effort needed in accurately modeling the classes and sub-classes for a problem
• Suited for modeling certain real world problems as opposed to some others
• Classes & Objects
• Concepts in OOP
• Advantages & Disadvantages
• Be prepared for an in-class activity (based on topics covered today)!
• Polymorphism in OOP!

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Introduction to Java Programming for High School

Introduction to java programming for high school presentation, free google slides theme, powerpoint template, and canva presentation template.

Teaching programming to High School students is undoubtedly a great way to give them useful and practical skills for life! And to help you out with this task, Slidesgo has created this template for an introduction to Java programming for you. Not only is it extremely attractive with its neon letters on black, but it also includes little practical exercises for the students to write their own programs straight away. Download the slides for Google Slides or PowerPoint and complete them with your own content - your students will be excited to learn!

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Java PowerPoint PPT Presentations

DEV Community

Posted on May 6, 2022

Java - How to Create a PowerPoint Presentation

Creating an attractive PowerPoint presentation is a meticulous task that needs the cooperation of brain, eyes, and hands. In order to achieve a perfect effect, we need to constantly fine tune the details, such as adjusting the size and position of a shape, or changing the color of text. Due to this reason, creating PowerPoint documents manually is typically more efficient than using code. However, in certain cases, we may have to do it programmatically.

In this article, you’ll learn how to create a simple PowerPoint document and insert basic elements (including text shape, image shape, list, and table) into it by using Free Spire.Presentation for Java , which is a free class library for processing PowerPoint documents in Java applications. The main tasks of this tutorial are as follows.

Create a PowerPoint Document

Get the first slide and set background image, insert a text shape, insert an image shape, insert a list, insert a table, save the powerpoint document, add spire.presentation.jar as dependency.

If you are working on a maven project, you can include the dependency in pom.xml file using this:

If you are not using maven, then you can find the required jar files from the zip file available in this location . Include all the jar files into the application lib folder to run the sample code given in this tutorial.

Import Namespaces

By default, there is one blank slide preset in the newly created PowerPoint document.

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How to Create a MS PowerPoint Presentation in Java with a Maven Project?

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In the software industry, presentations play a major role as information can be conveyed easily in a presentable way via presentations. Using Java, with the help of Apache POI, we can create elegant presentations. Let us see in this article how to do that.

Necessary dependencies for using Apache POI:

It has support for both .ppt and .pptx files. i.e. via 

• HSLF implementation is used for the Powerpoint 97(-2007) file format 
• XSLF implementation for the PowerPoint 2007 OOXML file format.

There is no common interface available for both implementations. Hence for 

• .pptx formats, XMLSlideShow, XSLFSlide, and XSLFTextShape classes need to be used.
• .ppt formats, HSLFSlideShow, HSLFSlide, and HSLFTextParagraph classes need to be used.

Let us see the example of creating with .pptx format

Creation of a new presentation:

Next is adding a slide

Now, we can retrieve the XSLFSlideLayout and it has to be used while creating the new slide

Let us cover the whole concept by going through a sample maven project.

Example Maven Project

Project Structure:

As this is the maven project, let us see the necessary dependencies via pom.xml

PowerPointHelper.java

In this file below operations are seen

• A new presentation is created
• New slides are added
• save the presentation as

We can write Text, create hyperlinks, and add images. And also the creation of a list, and table are all possible. In general, we can create a full-fledged presentation easily as well can alter the presentation by adjusting the slides, deleting the slides, etc. Below code is self-explanatory and also added comments to get an understanding of it also.

We can able to get the presentation got created according to the code written and its contents are shown in the image below

We can test the same by means of the below test file as well

PowerPointIntegrationTest.java

Output of JUnit:

We have seen the ways of creating of presentation, adding text, images, lists, etc to the presentation as well as altering the presentation as well. Apache POI API is a very useful and essential API that has to be used in software industries for working with the presentation.

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Spire.Presentation for Java is a professional PowerPoint API that enables developers to create, read, write, convert and save PowerPoint documents in Java Applications.

eiceblue/Spire.Presentation-for-Java

Folders and files, repository files navigation, spire.presentation-for-java library for processing powerpoint documents.

Product Page | Tutorials | Examples | Forum | Customized Demo | Temporary License

Spire.Presentation for Java is a professional PowerPoint API that enables developers to create, read , write, convert and save PowerPoint documents in Java Applications. As an independent Java library, Spire.Presentation doesn't need Microsoft PowerPoint to be installed on system.

A rich set of features can be supported by Spire.Presentation for Java, such as add/edit/remove slide , create chart , create table , add bullets , encrypt and decrypt PPT , add watermark , add hyperlink , insert audio and video , paragraph settings, document properties settings , insert/extract image , extract text , set animation , add header and footer , add/delete comment, add note , create SmartArt .

Standalone Java API

Spire.Presentation for Java is a 100% independent Java PowerPoint API which doesn't require Microsoft PowerPoint to be installed on system.

Support PowerPoint Version

• PPT - PowerPoint Presentation 97-2003
• PPS - PowerPoint SlideShow 97-2003
• PPTX - PowerPoint Presentation 2007/2010/2013/2016/2019
• PPSX - PowerPoint SlideShow 2007, 2010

Rich PowerPoint Elements Supported

Spire.Presentation for Java supports to process a variety of PowerPoint elements, such as slide , text , image , shape , table , chart , watermark , animation , header and footer , comment , note , SmartArt , hyperlink , OLE object, audio and video .

High Quality PowerPoint File Conversion

Spire.Presentation for Java allow developers to convert PowerPoint documents to other file formats such as:

Convert PowerPoint to PDF

Convert PowerPoint to Image

Convert PowerPoint to SVG

Convert PowerPoint to XPS

Convert PowerPoint to HTML

Convert PowerPoint to PDF in Java

Convert powerpoint to images in java, convert powerpoint to svg in java.

oops concept in java | object oriented programming in java

The document discusses key concepts in object-oriented programming in Java including classes, objects, inheritance, packages, interfaces, encapsulation, abstraction, and polymorphism. It provides examples to illustrate each concept. Classes define the structure and behavior of objects. Objects are instances of classes. Inheritance allows classes to extend existing classes. Packages organize related classes. Interfaces define behaviors without implementation. Encapsulation hides implementation details. Abstraction models essential features without specifics. Polymorphism allows the same method name with different signatures or overriding. Read less

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• 1. Object-Oriented Programming Concept in Java Call Us: 01165164822 CPD TECHNOLOGIESTM An ISO 9001: 2008 Certified Add:- Block C 9/8, Sector -7, Rohini, Delhi-110085, India www.cpd-india.com Blog.cpd-india.com
• 2. If you've never used an object-oriented programming language before, you'll need to learn a few basic concepts before you can begin writing any code. This lesson will introduce you to objects, classes, inheritance, interfaces, and packages. Each discussion focuses on how these concepts relate to the real world. Object Oriented Programming
• 3. What Is a Class? A class is a blueprint (It is user defined data types it could be anything) or prototype from which objects are created. This section defines a class that models the state and behavior of a real-world object. It intentionally focuses on the basics, showing how even simple classes can cleanly model state and behavior. E.g. class Demo { public static void main (String args[]) { System.out.println("Welcome to Java”); } }
• 4. What Is an Object? An object is a software bundle of related state and behavior. Software objects are often used to model the real-world objects that you find in everyday life (Object is real world Entity to represent a physical instance of a Class). A software object maintains its state in variables and implements its behavior with methods. E.g.
• 5. What Is a Package? A Java package is a mechanism for organizing Java classes into namespaces similar to the modules of Modula. Java packages can be stored in compressed files called JAR files, allowing classes to download faster as a group rather than one at a time. Programmers also typically use packages to organize classes belonging to the same category or providing similar functionality.
• 6. •A package provides a unique namespace for the types it contains. •Classes in the same package can access each other's package-access members. E.g:- import java.lang.*; import java.util.*; import java.io.*; import java.awt.*;
• 7. What Is Inheritance? Inheritance provides a powerful and natural mechanism for organizing and structuring your software. Now we will explain how classes inherit state and behavior from their super classes, and explains how to derive one class from another using the simple syntax provided by the Java programming language.
• 8. E.g. Single Inheritance class A { //statements; } class B extends A { public static void main (String ar[]) { System.out.println ("Welcome to Java Programming"); } }
• 9. E.g. : Multilevel Inheritance class A { //statements; } class B extends A { //statements; } class C extends B { //statements; public static void main(String ar[]) { //statements } }
• 10. E.g. Hierarchal Inheritance class A { //statements; } class B extends A { //statements; } class C extends A { public static void main(String ar[]) { //statements; } }
• 11. What is an Abstraction? Abstraction is the process of abstraction in Java is used to hide certain details and only show the essential features of the object. In other words, it deals with the outside view of an object (interface). Abstract class cannot be instantiated; the class does not have much use unless it is subclass. This is typically how abstract classes come about during the design phase. A parent class contains the common functionality of a collection of child classes, but the parent class itself is too abstract to be used on its own.
• 12. E.g. abstract class A { public abstract void sum(int x, int y); } class B extends A { public void sum(int x,int y) { System.out.println(x+y); } public static void main(String ar[]) { B obj=new B(); obj.sum(2,5); } }
• 13. What Is an Interface? An interface is a collection of abstract methods (it means all methods are only declared in an Interface). A class implements an interface, thereby inheriting the abstract methods of the interface. And that class implements interface then you need to defined all abstract function which is present in an Interface. An interface is not a class. Writing an interface is similar to writing a class, but they are two different concepts. A class describes the attributes and behaviors of an object. An interface contains behaviors that a class implements.
• 14. E.g. interface A { public void sumData(int x, int y); } class Demo implements A { public void sumData (int x, int y) { System.out.println ("Total is "+(x+y)); } public static void main (String ar[]) { Demo d=new Demo (); d.sumData (10, 20); } }
• 15. What Is An Encapsulation? Encapsulation is one of the four fundamental OOP concepts. The other three are inheritance, polymorphism, and abstraction. Encapsulation is the technique of making the fields in a class private and providing access to the fields via public methods. If a field is declared private, it cannot be accessed by anyone outside the class, thereby hiding the fields within the class. For this reason, encapsulation is also referred to as data hiding.
• 16. E.g. public class EncapTest { private String name; private String idNum; private int age; public int getAge() { return age; } public String getName() { return name; } public String getIdNum() { return idNum; }
• 17. public void setAge( int newAge) { age = newAge; } public void setName(String newName) { name = newName; } public void setIdNum( String newId) { idNum = newId; } }
• 18. public class RunEncap { public static void main(String args[]) { EncapTest encap = new EncapTest(); encap.setName("James"); encap.setAge(20); encap.setIdNum("12343ms"); System.out.print("Name : " + encap.getName()+" Age :"+encap.getAge()); } }
• 19. What is Polymorphism? Method overloading and method overriding uses concept of Polymorphism in Java where method name remains same in two classes but actual method called by JVM depends upon object at run time and done by dynamic binding in Java. Java supports both overloading and overriding of methods. In case of overloading method signature changes while in case of overriding method signature remains same and binding and invocation of method is decided on runtime based on actual object.
• 20. Method overloading In Method overloading we have two or more functions with the same name but different arguments. Arguments must be changed on the bases of Number, orders and Data types. E.g. class A { public void f1(int x) { System.out.println(x*x); } public void f1(int x,int y) { System.out.println(x*y); }
• 21. public static void main(String ar[]) { A a=new A(); a.f1(5); a.f1(2,3); } }
• 22. Method Overriding We have two classes and both classes have a function with the same name and same Parameters inheritance is necessary. Eg. class B { public void f1(int x,int y) { System.out.println(x+y); } }
• 23. class A extends B { public void f1(int x,int y) { System.out.println(x*y); } public static void main(String ar[]) { A a=new A(); a.f1(5,5); B b=new B(); b.f1(2,3); } }
• 24. CPD TECHNOLOGIES Block C 9/8, Sector -7, Rohini, Delhi-110085, India Landmark: Near Rohini East Metro Station, Opposite Metro Pillar No-397 Telephone: 011-65164822 Mobile: +91- 8860352748 Email: [email protected] www.cpd-india.com www.facebook.com/cpdtechnology