Kamis, 02 April 2026
Rabu, 01 April 2026
VB 6 Self Typing Demo 2
Option Explicit
Private Const FIXED_TEXT = "This is a demo of self a typing textbox effect."
Private Sub Form_Load()
Timer1.Interval = 300
End Sub
Private Sub Timer1_Timer()
Timer1.Interval = 150 * Rnd
Static i%
i = i + 1
Text1.Text = Text1.Text & Mid(FIXED_TEXT, i, 1)
If Text1.Text = FIXED_TEXT Then Timer1.Enabled = False
End Sub
VB 6 Self Typing Demo
Option Explicit
Private Const FIXED_TEXT = "This is a demo of selftyping textbox."
Private Sub Form_Load()
Timer1.Interval = 100
End Sub
Private Sub Timer1_Timer()
Static i%
i = i + 1
Text1.Text = Text1.Text & Mid(FIXED_TEXT, i, 1)
If Text1.Text = FIXED_TEXT Then Timer1.Enabled = False
End Sub
C++ From Year 1995 Bonus
// Filename: BPROJ1.CPP
// This program displays the character for each ASCII value
#include <iostream.h>
void main()
{
// Output a heading
cout << "Value Character" << endl;
// For all the characters (missing out the first
// few unprintable characters.
for (int i = 32; i <= 255; i++)
{
// Make the value print in 3 characters
cout.width(3);
// Print the value, followed by some spaces
// followed by the character value and
// finally a new line
cout << i << " " << (char)i << endl;
}
}
=====================
// Filename: BPROJ2.CPP
// This program demonstrates the basic structure
// of a C++ program
#include <iostream.h>
void main()
{
// Declare and initialise variables
int value1 = 10;
int value2 = 20;
int value3 = 40;
// Declare a variable for working out the
// sum of the numbers
int sum;
// Declare another variable for the result
int average;
// Add three numbers into sum
sum = value1 + value2 + value3;
// divide the sum by the number of values to
// get the average
average = sum / 3;
// Output the result
cout << "The average of " << value1 << ", "
<< value2 << " and " << value3 << " is "
<< average << endl;
cout << "The sum of the numbers is " << sum;
}
=====================
// BPROJ3.CPP
// A simple review of character and numeric
// input and output.
#include <iostream.h>
void main()
{
// Declare variables
int decimals = 0;
float number;
const int descLen = 80;
char numberDesc[descLen];
cout << "Enter a floating point number: ";
cin >> number;
cin.ignore(80,'\n');
cout << "How many decimal places do you want? ";
cin >> decimals;
cin.ignore(80,'\n');
cout << "How do you want to describe the number?" << endl;
cin.getline(numberDesc,descLen);
cout << endl;
cout << numberDesc << ": ";
// Format the number as requested
cout.precision(decimals);
cout.setf(ios::fixed);
cout.setf(ios::showpoint);
cout << number;
}
=====================
// Filename : BPROJ4.CPP
// This project does some calculations
// and then tests them.
#include <iostream.h>
void main()
{
char burgerType = ' ';
char cheese = ' ';
char fries = ' ';
float burgerCost = 0.0F;
float friesCost = 0.0F;
float totalCost = 0.0F;
cout << "Welcome to Spencer's Burger Bar!" << endl;
cout << endl << "What sort of burger would you like?" << endl;
cout << "[s]mall, [q]uarter pounder, [b]loatburger? ";
cin >> burgerType;
if (burgerType >= 'a' && burgerType <= 'z')
burgerType += 'A' - 'a';
if (burgerType != 'S' && burgerType != 'Q'
&& burgerType != 'B')
burgerType = 'Q';
cout << "Is that with cheese?";
cin >> cheese;
if (cheese == 'Y' || cheese == 'y')
cheese = 'Y';
else
cheese = 'N';
cout << "[r]egular or [l]arge fries?";
cin >> fries;
if (fries == 'r' || fries == 'R' ||
fries == 'l' || fries == 'L')
{
if (fries == 'r' || fries == 'l')
fries += 'A' - 'a';
}
else
fries = 'R';
// Calculate cost - everything is relative
burgerCost = 1.75F;
if (burgerType == 'S')
burgerCost *= 0.60F;
if (burgerType == 'B')
burgerCost *= 1.7F;
if (cheese == 'Y')
burgerCost += 0.50F;
if (fries == 'R')
friesCost = 1.00F;
else
friesCost = 1.50F;
totalCost = burgerCost + friesCost;
if (fries == 'L' && burgerType == 'B')
{
cout << "There is a special on the Bloat & large fries!" << endl;
totalCost = totalCost * 0.9F;
}
cout << "That will be $";
cout.setf(ios::fixed);
cout.setf(ios::showpoint);
cout.precision(2);
cout << totalCost << "." << endl;
cout << "Have a nice day!";
}
=======================
// BPROJ5.CPP
// Switching and calculations explored
#include <iostream.h>
void main()
{
int method = 1;
float f = 1.99F;
int i = 10;
float answer = 0;
// This program simply demonstrates some rounding errors
cout << "1. i * f" << endl;
cout << "2. (int)(i * f)" << endl;
cout << "3. i * (int)f" << endl;
cout << "4. (int)(i * f) * f" << endl;
cout << "5. (int)(i *f) * (int)f" << endl;
cout << "Enter method: ";
cin >> method;
switch (method)
{
case 1:
answer = i * f;
break;
case 2:
answer = (int)(i * f);
break;
case 3:
answer = i * (int)f;
break;
case 4:
answer = (int)(i * f) * f;
break;
case 5:
answer = (int)(i * f) * (int)f;
break;
default:
cout << "Invalid input";
return;
}
cout << "The answer is " << answer << endl;
}
============================
// Filename: BPROJ6.CPP
// Factors - a factor is a number that
// multiplied by another number exactly makes another number
#include <iostream.h>
void main()
{
int product = 1;
while (product)
{
cout << endl << "Enter number to test:";
cin >> product;
if (product)
{
cout << "The factors of " << product << " are:" << endl;
for (int i = 2; i < product ; i++)
{
if (product % i)
continue;
cout << i << endl;
}
}
}
}
==============================
// Filename: BPROJ7.CPP
// Exporing function calls at the burger bar
#include <iostream.h>
inline char UpperCase(char c)
{
if (c >= 'a' && c <= 'z')
return c + 'A' - 'a';
else
return c;
}
float PriceBurger(char burgerType,int withCheese)
{
float burgerCost = 1.75F;
if (burgerType == 'S')
burgerCost *= 0.60F;
if (burgerType == 'B')
burgerCost *= 1.7F;
if (withCheese)
burgerCost += 0.50F;
return burgerCost;
}
float PriceFries(char fries)
{
if (fries == 'R')
return 1.00F;
else
return 1.50F;
}
void GetBurgerType(char& burgerType, char& cheese)
{
do
{
cout << endl << "What sort of burger would you like?" << endl;
cout << "[s]mall, [q]uarter pounder, [b]loatburger? ";
cin >> burgerType;
burgerType = UpperCase(burgerType);
}
while (burgerType != 'S' && burgerType != 'Q'
&& burgerType != 'B');
do
{
cout << "Is that with cheese?";
cin >> cheese;
cheese = UpperCase(cheese);
}
while (cheese != 'Y' && cheese != 'N');
}
char GetFries()
{
char fries;
do
{
cout << "[r]egular or [l]arge fries?";
cin >> fries;
fries = UpperCase(fries);
}
while (fries != 'R' && fries != 'L');
return fries;
}
void Special(char fries, char burgerType, float& totalCost)
{
if (fries == 'L' && burgerType == 'B')
{
cout << "There is a special on the Bloat & large fries!" << endl;
totalCost = totalCost * 0.9F;
}
}
void main()
{
char burgerType;
char cheese;
cout << "Welcome to Spencer's Burger Bar!" << endl;
GetBurgerType(burgerType,cheese);
char fries = GetFries();
float totalCost = PriceBurger(burgerType, (cheese == 'Y'))
+ PriceFries(fries);
Special(fries,burgerType,totalCost);
cout << "That will be $";
cout.setf(ios::fixed);
cout.setf(ios::showpoint);
cout.precision(2);
cout << totalCost << "." << endl;
cout << "Have a nice day!";
}
=============================
// File name: BPROJ8.CPP
// Something interesting with arrays and pointers.
#include <iostream.h>
// A routine to return a value 0 for non-alpha
// and 1 to 26 for a to z in either upper or lowercase
inline int Letters(char p)
{
if (p >= 'a' && p <= 'z')
return p - 'a' + 1;
if (p >= 'A' && p <= 'Z')
return p - 'A' + 1;
else
return 0;
}
void main()
{
const int maxLen = 80;
char input[maxLen];
int letters[27] = {0};
char * inpPtr;
cout << "Give me a string please" << endl;
cin.getline(input,maxLen);
inpPtr = input;
while (*inpPtr) // While not string terminator
letters[Letters(*inpPtr++)]++; // !!! Guess what this does !!!
cout << "Your string contains: " << endl;
cout << "Non-alpha " << letters[0] << endl;
for (int i = 1; i < 27; i++)
if (letters[i])
cout << (char)('A' + i - 1) << " "
<< letters[i] << endl;
}
C++ From Year 1995 Extras
// Filename: BIT1.CPP
// Demonstrate &, |, ^, and ~ on two values
#include <iostream.h>
void main()
{
int i = 5, j = 12;
int answer;
// Although this program applies the bitwise operators to
// variables, bitwise operators also work on literal values
answer = i & j;
cout << "The result of i & j is " << answer << endl;
answer = i | j;
cout << "The result of i | j is " << answer << endl;
answer = i ^ j;
cout << "The result of i ^ j is " << answer << endl;
// Notice how ~ takes only a single argument
answer = ~i;
cout << "The result of ~i is " << answer << endl;
answer = ~j;
cout << "The result of ~j is " << answer << endl;
return;
}
===========================
// Filename: BITEQUI2.CPP
// Uses bitwise operators to work with user input
#include <iostream.h>
void main()
{
int i, result;
char c;
cout << "Enter a number and I'll say if it's odd or even: ";
cin >> i;
if (i & 1)
{ cout << "The number is odd" << endl; }
else
{ cout << "The number is even" << endl; }
cout << endl << "Enter a number that you want multiplied by 32: ";
cin >> i;
result = i << 5; // Multiplies by 2 raised to the 5th power
cout << i << " times 32 is " << result << endl;
result = i >> 3;
cout << i << " divided by 8 is " << result << endl;
cout << endl << "Please enter your first initial: ";
cin >> c;
if (c & 32)
{ cout << "Always type your initial in uppercase" << endl; }
else
{ cout << "You entered the initial in uppercase, good!" << endl; }
return;
}
========================
// Filename: BITEQUIV.CPP
// Uses bitwise operators to work with user input
#include <iostream.h>
void main()
{
int i, result;
char c;
cout << "Enter a number and I'll say if it's odd or even: ";
cin >> i;
if ((i & 1) == 1)
{ cout << "The number is odd" << endl; }
else
{ cout << "The number is even" << endl; }
cout << endl << "Enter a number that you want multiplied by 32: ";
cin >> i;
result = i << 5; // Multiply by 2 raised to the fifth power
cout << i << " times 32 is " << result << endl;
cout << endl << "Please enter your first initial: ";
cin >> c;
if (c & 32)
{ cout << "Always type your initial in uppercase" << endl; }
else
{ cout << "You entered the initial in uppercase, good!" << endl; }
return;
}
=========================
// Filename: BITSHIFT.CPP
// Shows the results of several bitwise shift operations
#include <iostream.h>
void main()
{
int shiftResult;
shiftResult = 13 << 2;
cout << "13 << 2 is " << shiftResult << endl;
shiftResult = 13 >> 2;
cout << "13 >> 2 is " << shiftResult << endl;
shiftResult = -13 << 2;
cout << "-13 << 2 is " << shiftResult << endl;
shiftResult = -13 >> 2;
cout << "-13 >> 2 is " << shiftResult << endl;
return;
}
======================
// Filename: BONUSP1.CPP
// Shows how the advanced operators give
// you more control and efficiency
#include <iostream.h>
const int MAKEUPPER = 223;
void main()
{
char partCode;
int num, doubleNum;
float price;
double totalInv;
cout << "** Inventory Valuation **" << endl << endl;
cout << "What is the character part code? ";
cin >> partCode;
partCode &= MAKEUPPER; // Ensure that the part
// code is uppercase
cout << "How many parts are there? ";
cin >> num;
cout << "What is the price of each part? ";
cin >> price;
cout.precision(2);
cout.setf(ios::showpoint);
cout.setf(ios::fixed);
totalInv = (double)num * (double)price;
cout << endl << "For part code " << partCode << ", ";
cout << "the total valuation is $" << totalInv << endl;
doubleNum = num << 1; // Compute double the current number
cout << endl << "Doubling our inventory would give us "
<< doubleNum << " new parts" << endl;
(num < 20) ? cout << endl << "We need to order more inventory!"
<< endl
:
cout << endl << "We now have enough inventory"
<< endl;
}
================
// Filename: ORANGE.CPP
// See if the user likes orange juice
#include <iostream.h>
void main()
{
const int UPMASK = 223;
char ans;
cout << "Do you like fresh squeeze orange juice (Y/N)? ";
cin >> ans;
ans &= UPMASK; // Convert to uppercase
if (ans == 'Y')
{ cout << "You'll be healthy all your life!" << endl; }
else
{ cout << "You need the vitamin C!" << endl; }
return;
}
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