Free Programming Source Codes and Computer Programming Tutorials

Tuesday, August 24, 2021

Difference of Two Numbers in Python

A simple program to ask the user to give two numbers and then the program will compute the difference of the two numbers, and display the results on the screen.

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My email address is jakerpomperada@gmail.com and jakerpomperada@yahoo.com

My mobile number here in the Philippines is 09173084360.

Program Listing

difference.py

# Python program to find difference between two numbers
# Author : Jake Rodriguez Pomperada, MAED-IT, MIT
# www.jakerpomperada.blogspot.com and www.jakerpomperada.com
# jakerpomperada@gmail.com
# Bacolod City, Negros Occidental Philippines

print()
print("\tDifference of Two Numbers in Python")
print()
num1 = int(input('Enter first number: '))
num2 = int(input('Enter second number: '))

# num1 is greater than num2
if num1 > num2:
    diff = num1 - num2
# num1 is less than num2
else:
    diff = num2 - num1

# Display the difference of two numbers
print()
print('The difference between {0} and {1} is {2}.'.format(num1, num2, diff))
print()
print("\tEnd of Program")
print()

Monday, August 23, 2021

Creating a Function in PHP

A simple program to demonstrate how to creating and use functions using PHP programming language.

My email address is jakerpomperada@gmail.com and jakerpomperada@yahoo.com

My mobile number here in the Philippines is 09173084360.

Program Listing

index.php

<?php

// defining the function

function greetings()

{

echo "Happy Birthday to you.<br>";

}

echo "Hey Julianna Rae <br/>";

// calling the function

greetings();

echo "Hey Virgilio <br/>";

// calling the function

greetings();

Sunday, August 22, 2021

Largest of Three Numbers in AngularJS

Machine Problem

Write a program that will ask user to give three numbers, and then the program will find the largest of three given numbers by the user and then display the results in the screen.

My email address is jakerpomperada@gmail.com and jakerpomperada@yahoo.com

My mobile number here in the Philippines is 09173084360.

Program Listing

<!-- index.htm

Author : Prof. Jake Rodriguez Pomperada, MAED-IT, MIT

Date : July 23, 2021 Friday 10:54 PM

Place : Bacolod City, Negros Occidental

Websites : www.jakerpomperada.com and www.jakerpomperada.blogspot.com

Email : jakerpomperada@gmail.com

-->

<html>

<head>

<title>Largest of Three Numbers in AngularJS</title>

<script type="text/javascript" src="angular.min.js"></script>

<script>

var myApp=angular.module("myModule",[]);

myApp.controller("Largest_Values",function($scope) {

$scope.doFind=function()

{

var max_val = 0;

if ($scope.a > $scope.b)

{

max_val = $scope.a;

} else

{

max_val = $scope.b;

}

if ($scope.c > max_val)

{

max_val = $scope.c;

}

$scope.result = "The Largest Number is " + max_val + ".";

}

});

</script>

</head>

<style>

body {

font-family: arial;

font-size: 25px;

font-weight: bold;

}

</style>

<body ng-app="myModule" ng-controller="Largest_Values">

<h3>Largest of Three Numbers in AngularJS</h3>

<div>

<table border="0">

<tr>

<td>

Enter Your First Number

</td>

<td>

<input type="number" ng-model="a"/>

</td>

<tr>

<td>

Enter Your Second Number

</td>

<td>

<input type="number" ng-model="b"/>

</td>

</tr>

<tr>

<td>

Enter Your Third Number

</td>

<td>

<input type="number" ng-model="c"/>

</td>

</tr>

<tr>

<td colspan="10">

<input type="button" ng-click="doFind();"

value="Find Largest Number"/>

</td>

</tr>

</table>

</div><br>

{{result}}

</div>

</body>

</html>

Saturday, August 21, 2021

Area of the Circle in VB NET

Area of the Circle in VB.NET

Machine Problem

Write a program that will ask the user to give a radius of a circle and the program will compute

the area of the circle.

Use the following formula below.

area = (3.14 * radius * radius)

My email address is jakerpomperada@gmail.com and jakerpomperada@yahoo.com

My mobile number here in the Philippines is 09173084360.

Program Listing

' Area of the Rectangle in VB.NET

' Prof. Jake Rodriguez Pomperada, MAED-IT, MIT

' www.jakerpomperada.com and www.jakerpomperada.blogspot.com

' jakerpomperada@gmail.com

' Bacolod City, Negros Occidental Philippines

' May 16, 2021 Sunday 1:10 PM

Public Class Form1

'Declaring constant value of PI of the circle

Public Const PI = 3.14

' Compute Button

Private Sub btnCompute_Click(sender As Object, e As EventArgs) Handles btnCompute.Click

Dim radius As Single = 0.0F

Dim area As Single = 0.0F

Dim radius_value As String

radius_value = txtRadius.Text

If radius_value = "" Or IsNumeric(radius_value) = False Then

MessageBox.Show("Please enter a radius value.")

txtRadius.Focus()

Else

area = PI * Val(radius_value) * Val(radius_value)

txtArea.Text = area.ToString("#####.##")

txtArea.ReadOnly = True

End If

End Sub

' Clear Button

Private Sub btnClear_Click(sender As Object, e As EventArgs) Handles btnClear.Click

txtRadius.Text = ""

txtArea.Text = ""

txtRadius.Focus()

End Sub

Private Sub btnQuit_Click(sender As Object, e As EventArgs) Handles btnQuit.Click

Dim result = MessageBox.Show(" Are you sure you want to quit the program?", "Confirmation", MessageBoxButtons.YesNo, MessageBoxIcon.Question)

If result = DialogResult.Yes Then

Me.Close()

Else

Me.Show()

txtRadius.Text = ""

txtArea.Text = ""

txtRadius.Focus()

End If

End Sub

End Class

Friday, August 20, 2021

Addition of Three Numbers in VB NET

Addition of Three Numbers in VB.NET

Machine Problem

Write a program that will ask the user to gived three numbers, and compute the sum of that numbers.

Use the following formula below.

total_sum = (variable_one + variable_two +variable_three)

My email address is jakerpomperada@gmail.com and jakerpomperada@yahoo.com

My mobile number here in the Philippines is 09173084360.

Program Listing

' Addition of Three Numbers Using VB.NET

' Prof. Jake Rodriguez Pomperada, MAED-IT, MIT

' www.jakerpomperada.com and www.jakerpomperada.blogspot.com

' jakerpomperada@gmail.com

' Bacolod City, Negros Occidental Philippines

' May 16, 2021 Sunday 11:23 AM

Public Class Form1

' Button Compute

Private Sub btnCompute_Click(sender As Object, e As EventArgs) Handles btnCompute.Click

Dim sum As Integer

Dim a, b, c As String

sum = 0

a = txtValue1.Text

b = txtValue2.Text

c = txtValue3.Text

If a = "" Or IsNumeric(a) = False Then

MessageBox.Show("Please enter a numeric value.")

txtValue1.Focus()

ElseIf b = "" Or IsNumeric(b) = False Then

MessageBox.Show("Please enter a numeric value.")

txtValue2.Focus()

ElseIf c = "" Or IsNumeric(c) = False Then

MessageBox.Show("Please enter a numeric value.")

txtValue3.Focus()

Else

sum = Val(a) + Val(b) + Val(c)

MessageBox.Show("The sum of " & a & "," & b & ", and " & c & " is " & sum & ".", "The Result")

End If

End Sub

'Button Quit

Private Sub btnQuit_Click(sender As Object, e As EventArgs) Handles btnQuit.Click

Dim result = MessageBox.Show(" Are you sure you want to quit the program?", "Confirmation", MessageBoxButtons.YesNo, MessageBoxIcon.Question)

If result = DialogResult.Yes Then

Me.Close()

Else

Me.Show()

txtValue1.Text = ""

txtValue2.Text = ""

txtValue3.Text = ""

txtValue1.Focus()

End If

End Sub

'Button Clear

Private Sub btnClear_Click(sender As Object, e As EventArgs) Handles btnClear.Click

txtValue1.Text = ""

txtValue2.Text = ""

txtValue3.Text = ""

txtValue1.Focus()

End Sub

End Class

Swapping Two Numbers Using AngularJS

Swapping of Two Numbers in AngularJS

Machine Problem

Write a program that will ask user to give two numbers and then the program will display the original and swap arrangement of the two numbers given by the user.

My email address is jakerpomperada@gmail.com and jakerpomperada@yahoo.com

My mobile number here in the Philippines is 09173084360.

Program Listing

<!-- index.htm

Author : Prof. Jake Rodriguez Pomperada, MAED-IT, MIT

Date : July 23, 2021 Friday 10:26 PM

Place : Bacolod City, Negros Occidental

Websites : www.jakerpomperada.com and www.jakerpomperada.blogspot.com

Email : jakerpomperada@gmail.com

-->

<html>

<head>

<title>Swapping of Two Numbers in AngularJS </title>

var myApp=angular.module("myModule",[]);

myApp.controller("Swapping_Values",function($scope) {

$scope.doSwap=function()

{

$scope.after_swap="Swap Arrangement : "

+ $scope.a + " and " + $scope.b;

var temp = $scope.a;

$scope.a = $scope.b;

$scope.b = temp;

$scope.before_swap="Original Arrangement : "

+ $scope.a + " and " + $scope.b;

}

});

</script>

</head>

<style>

body {

font-family: arial;

font-size: 25px;

font-weight: bold;

}

</style>

<h3>Swapping of Two Numbers in AngularJS </h3>

<div>

<tr>

<td>

Enter Your First Number

</td>

<td>

</td>

<tr>

<td>

Enter Your Second Number

</td>

<td>

</td>

</tr>

<tr>

<input type="button" ng-click="doSwap();"

value="Swap Numbers"/>

</td>

</tr>

</table>

</div><br>

</div>

</body>

</html>

Thursday, August 19, 2021

Count Consonants in AngularJS

Machine Problem

Write a program that will ask user to give a string and then the program will display the given string, and then it will count the number of consonants in the given string.

My email address is jakerpomperada@gmail.com and jakerpomperada@yahoo.com

My mobile number here in the Philippines is 09173084360.

Program Listing

<!-- index.htm

Author : Prof. Jake Rodriguez Pomperada, MAED-IT, MIT

Date : July 21, 2021 Wednesday 10:34 PM

Place : Bacolod City, Negros Occidental

Websites : www.jakerpomperada.com and www.jakerpomperada.blogspot.com

Email : jakerpomperada@gmail.com

-->

<head>

<title>Count Consonants in AngularJS</title>

</head>

<style>

body {

font-family: arial;

font-size: 25px;

font-weight: bold;

}

</style>

</script>

// AngularJS Controller Declaration

angular.module('mainApp', []).service('myService', function() {

this.myFunc = function(val_1) {

var countConsonants = 0;

str_upper = val_1.toUpperCase();

for (var i = 0; i < str_upper.length; i++) {

if (str_upper.charAt(i) !== "A" && str_upper.charAt(i) !== "E" && str_upper.charAt(i) !== "I"

&& str_upper.charAt(i) !== "O" && str_upper.charAt(i) !== "U" && str_upper.charAt(i) !== " ") {

countConsonants++;

}

return countConsonants;

};

}).controller('Count_Consonants_Controller', function($scope, myService) {

$scope.check = function(val_1) {

$scope.myUserService = myService.myFunc(val_1);

}

});

</script>

<form>

<tr>Count Consonants in AngularJS</tr>

<tr>

<td>Enter a String</td>

</tr>

<table>

</form><br>

<b>The given string {{val_1 | uppercase }}. </b><br><br>

<b>The number of consonants is {{myUserService}}.</b>

</div>

</body>

</html>

Consonants and Vowels in C Improved Version

A simple program that I wrote using C programming language to ask the user to give a string and then the program will count the number of vowels, and consonants improved version and display the results on the screen.

My email address is jakerpomperada@gmail.com and jakerpomperada@yahoo.com

My mobile number here in the Philippines is 09173084360.

Program Listing

/* main.c

Prof. Jake Rodriguez Pomperada, MAED-IT, MIT

www.jakerpomperada.blogspot.com and www.jakerpomperada.com

jakerpomperada@gmail.com

Bacolod City, Negros Occidental Philippines

August 19, 2021 Thursday 6:26 AM

#include <stdio.h>

#include <string.h>

#include <stdlib.h>

#include <stdbool.h>

bool is_vowel(char ch)

{

const char vowels[] = "aeiouAEIOU";

return strchr(vowels, ch) != NULL;

}

bool is_consonant(char ch)

{

const char consonats[] = "bcdfghjklmnpqrstvwxyzBCDFGHJKLMNPQRSTVWXYZ";

return strchr(consonats, ch) != NULL;

}

int main()

{

char str[100]; int i=0;

int vowels=0,consonants=0, a = 0;

printf("\n\n\tConsonants and Vowels in C Improved Version\n");

printf("\nGive a String : ");

// scanf("%s",&str); reads only till the first whitespace

fgets(str, sizeof(str), stdin);

char *pos = strrchr(str, '\n');

// fgets sometines leaves a trailing \n in the str

if(pos != NULL)

pos = '\0';

for(i=0; str[i]!='\0'; i++)

{

if(is_vowel(str[i]))

{

a++;

vowels++;

printf("\n %d. The Vowels is: %c",a,str[i]);

}

else if (is_consonant(str[i]))

{

a++;

consonants++;

printf("\n %d. The Consonant is: %c",a,str[i]);

}

printf("\n\n\nThe Total Number of Vowels : %d",vowels);

printf("\nThe Total Number of Consonants : %d",consonants);

printf("\n\n\tEnd of Program\n\n");

return EXIT_SUCCESS;

} /* End of Code */

Wednesday, August 18, 2021

Lower Case To Upper Case String Conversion in C++

I simple program that I wrote to accept string from the user in lowercase and convert it into upper case format in C++ programming language.

My email address is jakerpomperada@gmail.com and jakerpomperada@yahoo.com

My mobile number here in the Philippines is 09173084360.

Program Listing

// lowercase_uppercase.cpp

// Prof. Jake Rodriguez Pomperada, MAED-IT, MIT

// www.jakerpomperada.blogspot.com and www.jakerpomperada.com

// jakerpomperada@gmail.com

// Bacolod City, Negros Occidental Philippines

// Dev C++ Version 5.11

#include <iostream>

#include <string>

using namespace std;

int main()

{

string str;

cout << "\n\n";

cout << "\tLower Case To Upper Case String Conversion in C++";

cout << "\n\n";

cout << "\tEnter a String : ";

getline(cin,str);

for (size_t i = 0; i < str.length(); ++i)

{

str[i]=toupper(str[i]);

}

cout << "\n\n";

cout<<"\tConverted Results in Upper Case : " <<str << ".";

cout << "\n\n";

cout << "\tEnd of Program";

cout << "\n\n";

system("PAUSE");

}

Free Programming Source Codes and Computer Programming Tutorials

Tuesday, August 24, 2021

Difference of Two Numbers in Python

Monday, August 23, 2021

Creating a Function in PHP

Sunday, August 22, 2021

Largest of Three Numbers in AngularJS

Largest of Three Numbers in AngularJS

Saturday, August 21, 2021

Area of the Circle in VB NET

Area of the Circle in VB.NET

Friday, August 20, 2021

Addition of Three Numbers in VB NET

Addition of Three Numbers in VB.NET

Swapping Two Numbers Using AngularJS

Swapping of Two Numbers in AngularJS

Thursday, August 19, 2021

Count Consonants in AngularJS

Count Consonants in AngularJS

Consonants and Vowels in C Improved Version

Consonants and Vowels in C Improved Version

Wednesday, August 18, 2021

Lower Case To Upper Case String Conversion in C++

Lower Case To Upper Case String Conversion in C++

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