Explain the importance of abstract classes in java, JAVA Programming

Assignment Help:

Question:

(a) Explain the importance of abstract classes in Java with an appropriate example.

(b) Explain what is meant by an interface in Java? Use a simple example to illustrate your answer.

(c) A GUI may contain text-fields, buttons, and other labels. A button usually triggers an event on the GUI. Explain the different processes in registering an event and handling the action performed by the button in Java.

(d) Write the code for a GUI which will allow a user to enter two numbers and then compute the product by clicking on a button. The result can be displayed in a text-field or as a label on the GUI.


Related Discussions:- Explain the importance of abstract classes in java

What types of new jobs are created because of computing, What types of new ...

What types of new jobs are created because of computing? And that old professions are being eliminated? Because of computing whereas people are getting benefits from automated

I need android kiosk mode, I need Android Kiosk Mode Project Description...

I need Android Kiosk Mode Project Description: I need an Android platform developer to develop an app when device start it start into kiosk mode. Only browser window open a c

How can you define a consistent web design, How can you define a consistent...

How can you define a consistent web design? Why is it needed? A consistent web design should be the one in which achieves the result in which it was designed for, which result

Give the example of mixing data type in java, Give the example of mixing da...

Give the example of mixing data type in java? Mixing Data Types Order can form a difference while data types are mixed. For example, 1 / 2 * 3.5 = 0.0 3.5 * 1 / 2 = 1.75 3.5 /

Develop a fantasy football, Need to develop a Fantasy football Project D...

Need to develop a Fantasy football Project Description: I am seeking to build a Fantasy football website. i already have an example of existing website. i want the exact same

Explain the term- strings, Explain the term- Strings A string is genera...

Explain the term- Strings A string is generally considered to be a sequence of characters stored in memory and accessible as a unit. Strings in java are signified as objects

Define object-to-relational (o/r) mapping, Object-to-Relational (O/R) mappi...

Object-to-Relational (O/R) mapping : There are various ways to persist data and the persistence layer is one of the most important layers in any application development. O/R ma

Prepare neo4j database of airline airports and routes, Prepare Neo4j databa...

Prepare Neo4j database of airline airports and routes. Implement Dijkstra algorithm to evaluate shortest path for flights with available seats. I'm need a developer with Neo4j/g

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd