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Why is an Interface be able to extend more than one Interface but a Class can't extend more than one Class?
Basically Java doesn't permit multiple inheritances, so a Class is restricted to extend only one Class. But an Interface is a pure abstraction model and doesn't have inheritance hierarchy like classes(do remember that the base class of all classes is Object). So an Interface is permitted to extend more than one Interface.
school management system
Task - Defining a Student class The below illustration will explain how to write a class. We want to write a "Student" class which - should be able to store the below charac
Colossus has just purchased a computer for its new automated reservation system. You have been asked to program the new system. You are to write a program to assign seats on ea
Development of an Android app urgent Project Description: I am searching for some good android developer who has depth in knowledge of making an app. I am focusing on a certa
do you have example of a simple midlet game ?
String is immutable in java : you can't change a string object but can replace it by creating a new object instance. Creating a new instance is rather expensive. //Non ef
What is output of the following JavaScript code? Str="Virtual University of Pakistan"; document.write(str.substring(5,str.length)) ;
An application or procedure that produces and/or receives messages.
i want a full program with test about the following: linkedComputers: We will assume that a number of methods are required. These are specified below. String getComputerName() ret
Due to impedance mismatch between relational technology and object you need to understand the progress of mapping classes (objects) and their relationships to tables and relationsh
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