Java Inheritance | Java Course

Jan 12, 2019Download as pptx, pdf

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Java Inheritance: → Inheritance can be defined as the process where one class acquires the properties (methods and fields) of another. → The class which inherits the properties of other is known as subclass (derived class, child class) and the class whose properties are inherited is known as superclass (base class, parent class). extends Keyword: → It is used to inherit the properties of a class. class Parent { } class Child extends Parent { } Types of Inheritance: Single Inheritance: → When a class extends another one class only. Class A { } Class B extends A { } Multilevel Inheritance: → One can inherit from a derived class, thereby making this derived class the base class for the new class. Class X { } Class Y extends X { } Class Z extends Y { } Hierarchical Inheritance: → One class is inherited by many sub classes. Class X { } Class Y extends X { } Class Z extends X { } -------------

extends keyword
● It is used to inherit the properties of a class.
class Parent
{
}
class Child extends Parent
{
}

Types of Inheritance - Single Inheritance
● When a class extends another one class only.
Class A
{
}
Class B extends A
{
}

Types of Inheritance - Multilevel Inheritance
● One can inherit from a derived class, thereby making this derived class the
base class for the new class.
Class X{
}
Class Y extends X{
}
Class Z extends Y{
}

Types of Inheritance - Hierarchical Inheritance
● One class is inherited by many sub classes.
Class X{
}
Class Y extends X{
}
Class Z extends X{
}

The document discusses the concept of inheritance in object-oriented programming. It defines inheritance as a child class automatically inheriting variables and methods from its parent class. The key benefits of inheritance are reusability of code and properties. The document explains how to create a subclass using the extends keyword, the constructor calling chain, and use of the super keyword. It also covers overriding and hiding methods, hiding fields, type casting, and final classes and methods.

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Next Generation 911 involves the transformation of our 911 system from an old analog one to the new digital internet based architecture. The evolution of NG911 opens up a host of new opportunities to improve the system. This includes everything from device based location, to real time text. This can improve location accuracy dramatically as well as provide live updates from the citizen in need along with real time sensor updates. There is also the opportunity to provide multi-media attachments and medical records if the end user approves. This digital transformation and enhancements all require the support of new NENA and CRTC standards, along with integration across a variety of data streams. This presentation will focus on how FME has supported NG911 transformations to date, and how we are positioning FME to support the enhanced capabilities to come. This session will be of interest to emergency services, municipalities and anyone who may be interested to know more about how emergency services are being improved to provide more accurate, localized information in order to improve the speed and relevance of emergency response and ultimately save more lives and provide better outcomes for those in need.

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FME for Good: Integrating Multiple Data Sources with APIs to Support Local Ch...Safe Software

Have-a-skate-with-Bob (HASB-KC) is a local charity that holds two Hockey Tournaments every year to raise money in the fight against Pancreatic Cancer. The FME Form software is used to integrate and exchange data via API, between Google Forms, Google Sheets, Stripe payments, SmartWaiver, and the GoDaddy email marketing tools to build a grass-roots Customer Relationship Management (CRM) system for the charity. The CRM is used to communicate effectively and readily with the participants of the hockey events and most importantly the local area sponsors of the event. Communication consists of a BLOG used to inform participants of event details including, the ever-important team rosters. Funds raised by these events are used to support families in the local area to fight cancer and support PanCan research efforts to find a cure against this insidious disease. FME Form removes the tedium and error-prone manual ETL processes against these systems into 1 or 2 workbenches that put the data needed at the fingertips of the event organizers daily freeing them to work on outreach and marketing of the events in the community.

Floods in Valencia: Two FME-Powered Stories of Data ResilienceSafe Software

In October 2024, the Spanish region of Valencia faced severe flooding that underscored the critical need for accessible and actionable data. This presentation will explore two innovative use cases where FME facilitated data integration and availability during the crisis. The first case demonstrates how FME was used to process and convert satellite imagery and other geospatial data into formats tailored for rapid analysis by emergency teams. The second case delves into making human mobility data—collected from mobile phone signals—accessible as source-destination matrices, offering key insights into population movements during and after the flooding. These stories highlight how FME's powerful capabilities can bridge the gap between raw data and decision-making, fostering resilience and preparedness in the face of natural disasters. Attendees will gain practical insights into how FME can support crisis management and urban planning in a changing climate.

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Oracle Cloud Infrastructure AI FoundationsVICTOR MAESTRE RAMIREZ

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Oracle Cloud Infrastructure Generative AI ProfessionalVICTOR MAESTRE RAMIREZ

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Supporting the NextGen 911 Digital Transformation with FMESafe Software

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Java Inheritance | Java Course

1. Java Inheritance - Rakesh

2. Java Inheritance ● Inheritance can be defined as the process where one class acquires the properties (methods and fields) of another. ● The class which inherits the properties of other is known as subclass (derived class, child class) and the class whose properties are inherited is known as superclass (base class, parent class).

3. extends keyword ● It is used to inherit the properties of a class. class Parent { } class Child extends Parent { }

4. Types of Inheritance - Single Inheritance ● When a class extends another one class only. Class A { } Class B extends A { }

5. Types of Inheritance - Multilevel Inheritance ● One can inherit from a derived class, thereby making this derived class the base class for the new class. Class X{ } Class Y extends X{ } Class Z extends Y{ }

6. Types of Inheritance - Hierarchical Inheritance ● One class is inherited by many sub classes. Class X{ } Class Y extends X{ } Class Z extends X{ }

Java Inheritance | Java Course

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