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Mathematical Statements and assignments
Within C we can directly load up the variable from within the program using the mathematical expression equates (=) e.g.
a= 'h'; Stores the character h in the variable A a=1; Stores the number 1 in the variable A b= 1.00E-10; Stores the number 1x10-10 in B c = 2.345; Stores the number 2.345 into c The assignment could be a self replacement type i.e. A=A+n; Adds n to the contents of the variable A and replaces the old value in A with the new one .The + operator is a mathematical operator which means add , likewise.
* means multiply / means divide - means subtract % (remainder of an integer division) ANSI C allows us to replace the simple formula A = A + n by a condensed version i.e A+=n; means A = A +n; e.g. a+=3.2 or a+=2; A-=n; means A = A-n; Likewise *=, /=, %= also exists. If the element to be subtracted/added is always one then we can use the increment operator (++) and decrement operator (--) i.e. ++A, A--, these can be pre operators and post operators (see loops) i.e. A+=1. Also parentheses (brackets) are used i.e. (). To supplement the C mathematical expressions scientific functions are available. We shall discuss these under the section concerned with functions. We can now construct simple programs using scanf, printf and mathematical functions.
Tell what the derived class inherits or doesn't inherit? A: Inherits: - All data member defined in the parent class (even though such members might not always be accessible
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Define Polymorphism? A: Polymorphism let a client to treat di_erent objects in the simialr way even if they were developed from di_erent classes and exhibit di_erent behaviors.
Comments Comments are integral part of every program . Comments help in coding, debugging and maintaining a program . The compiler ignores them. They should be used liberally i
Given a bool variable isReadable write some statements that assign true to isReadable if the file "topsecret" exists and can be read by the program and assigns false to isR
Abstract Classes Abstract classes are the classes, which are written just to act as base classes. Consider the following classes. class base
Write a program to find the area under the curve y = f(x) between x = a and x = b, integrate y = f(x) between the limits of a and b. The area under a curve between two points can b
Aim: To implement a program for dynamic data structure(linked list). Code: class node { int data; node *next;
Problem: (a) A GUI can contain text-fields, buttons, and other labels. A button usually triggers an event on the GUI. Explain the different processes in registering an event
who to write max if statements in a program
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