Lab Cycle 1 - C++ - CodeAriyoo

Question 01 of 02

Demonstration of Fundamental Datatypes and sizeof Operator

Problem Statement

Write a Turbo C++ program to declare variables of various fundamental datatypes (int, float, double, char), initialize them with sample values, and print their values along with their memory size in bytes using the sizeof operator.

C++

Approach 1 / 2

#include <iostream.h>
#include <conio.h>

void main() {
    int i = 25;
    float f = 3.1415;
    double d = 98765.4321;
    char c = 'A';

    clrscr();

    cout << "--- Fundamental Datatypes in Turbo C++ ---" << endl;
    cout << "Integer value: " << i << " | Size: " << sizeof(i) << " byte(s)" << endl;
    cout << "Float value:   " << f << " | Size: " << sizeof(f) << " byte(s)" << endl;
    cout << "Double value:  " << d << " | Size: " << sizeof(d) << " byte(s)" << endl;
    cout << "Char value:    " << c << " | Size: " << sizeof(c) << " byte(s)" << endl;

    getch();
}

Code Segment	Explanation & Purpose
`#include <iostream.h>`	Includes standard stream input/output declarations (cin, cout, endl) for Turbo C++.
`#include <conio.h>`	Console I/O header required for clrscr() and getch() functions.
`void main()`	Program entry point function returning void in Turbo C++.
`int i = 25; ...`	Declares and initializes integer, float, double, and char variables.
`clrscr();`	Clears previous output text from the DOS console screen.
`sizeof(i)`	Compile-time operator that returns the memory storage allocated in bytes (2 bytes for int in 16-bit Turbo C++).
`getch();`	Waits for a single keyboard character press, freezing the console output screen so the user can inspect results.

Question 1 of 2

Datatypes, Variables, Input/Output & Library Functions

Demonstration of Fundamental Datatypes and sizeof Operator