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Why is it that programming is harder than math?
That's not necessarily true at all. It depends on the individual person. Some people find programming harder than math. Some people find math harder than programming. Some people find both programming and math to be pieces o' cake. Some people are afraid of both programming and math, and so they find both to be hard. And some people have no idea what programming or math is.
Write a program to find the grade obtained by the students of a class using structure?
Write a program to find the grade obtained by the students of a class
How do you change Css class of an element with javascript?
//Find the object in the DOM, and set its new class name: document.getElementById['elementIdName'].className = "nameOfYourNewClass";
What is class?
It is where you leave school or otherwise find a way to avoid going to that particular class.
What is purpose of abstraction in java?
Abstract keyword used for method declaration declares the methods without implementations. Abstract class in java have abstract methods that is not implemented in abstract class, but implemented in subclasses in java program. If the class in java program is not required to get instantiated than that class use the abstract keyword but this class rather is available for other classes to extend by other classes. Abstract keyword will be used in method declaration to declare that method without providing the implementation in that java program. In other words we can say that, it formally unfinished class as well as method, that marked with the help of keyword abstract. Defining abstract is a way of preventing someone from instantiating a class that is supposed to be extended first. In java program abstract class is deliberately missing similar to like an interface which will missing all method bodies in the program. Abstract class provides a way to extend an actual class. We will not use new on abstract classes but will use abstract references in the java program, that always point to objects of the class that extends an abstract class. In java program for practical use of an abstract class, we will define a non-abstract class that extends an abstract one. This will use any of the inherited non-abstract methods. Most of the time abstract class may extend another abstract class. In that condition it need not implement all in the non-abstract methods. An abstract keyword used both on classes and methods. In case of class declared with an abstract keyword may not be instantiated that is the only thing that abstract keyword doing.
