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Introduction
C++ "Hello, World!" ProgramPrint Number Entered by UserAdd Two NumbersFind Quotient and RemainderFind Size of int, float, double and char in Your SystemSwap Two NumbersFind ASCII Value of a CharacterMultiply two Numbers
Decisions and Loops
Check Whether Number is Even or OddCheck Whether a character is Vowel or ConsonantFind Largest Number Among Three NumbersFind All Roots of a Quadratic EquationCalculate Sum of Natural NumbersCheck Leap YearFind FactorialGenerate Multiplication TableDisplay Fibonacci SeriesFind GCDFind LCMReverse a NumberCalculate Power of a NumberCheck Whether a Number is Palindrome or NotCheck Whether a Number is Prime or NotDisplay Prime Numbers Between Two IntervalsCheck Armstrong NumberDisplay Armstrong Number Between Two IntervalsDisplay Factors of a NumberCreate Pyramid and PatternMake a Simple Calculator to Add, Subtract, Multiply or Divide Using switch...case
Functions
Display Prime Numbers Between Two Intervals Using FunctionsCheck Prime Number By Creating a FunctionCheck Whether a Number can be Express as Sum of Two Prime NumbersFind Sum of Natural Numbers using RecursionCalculate Factorial of a Number Using RecursionFind G.C.D Using RecursionConvert Binary Number to Decimal and vice-versaConvert Octal Number to Decimal and vice-versaConvert Binary Number to Octal and vice-versaReverse a Sentence Using RecursionCalculate Power Using Recursion
Arrays and Strings
Calculate Average of Numbers Using ArraysFind Largest Element of an ArrayCalculate Standard DeviationAdd Two Matrix Using Multi-dimensional ArraysMultiply Two Matrix Using Multi-dimensional ArraysFind Transpose of a MatrixMultiply two Matrices by Passing Matrix to FunctionAccess Elements of an Array Using PointerSwap Numbers in Cyclic Order Using Call by ReferenceFind the Frequency of Characters in a StringFind the Number of Vowels, Consonants, Digits and White Spaces in a StringRemove all Characters in a String Except AlphabetsFind the Length of a StringConcatenate Two StringsCopy StringsSort Elements in Lexicographical Order (Dictionary Order)
Structures
Store Information of a Student in a StructureAdd Two Distances (in inch-feet) System Using StructuresAdd Complex Numbers by Passing Structure to a FunctionCalculate Difference Between Two Time PeriodStore and Display Information Using Structure
Operator overloading
Increment ++ and Decrement -- Operator Overloading in C++ ProgrammingSubtract Complex Number Using Operator Overloading

C++ Program to Find Size of int, float, double and char in Your System

We can use the sizeof operator to find the size of a variable.


              

sizeof(dataType);

Example: Find Size of a Variable


              

#include <iostream>
using namespace std;

int main()
{
    cout << "Size of char: " << sizeof(char) << " byte" << endl;
    cout << "Size of int: " << sizeof(int) << " bytes" << endl;
    cout << "Size of float: " << sizeof(float) << " bytes" << endl;
    cout << "Size of double: " << sizeof(double) << " bytes" << endl;

    return 0;
}

Output


              

Size of char: 1 byte
Size of int: 4 bytes
Size of float: 4 bytes
Size of double: 8 bytes

Note: You may get different result if you are using a old computer.

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