Free Programming Source Codes and Computer Programming Tutorials: July 2022

Sunday, July 31, 2022

How To Run JavaScript Code Using Node.JS

How To Run JavaScript Code in Node.JS

A simple program to add the sum of two numbers using JavaScript and run on Node.JS.

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Program Listing

var a = 5;  var b = 6;  

var sum =0;

var sum = (a+b);

console.log("The sum of " + a + " and " + b + " is " + sum + ".");

Saturday, July 30, 2022

Swap Two Numbers Using JOptionPane in Java

Swap Two Numbers Using JOptionaPane in Java

A simple program that I wrote that will ask the user to give two numbers and then the program will swap the arrangement of two numbers using JOptionPane in Java programming language.

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Program Listing

package demo;

import javax.swing.JOptionPane;

public class Activity_No_One {

public static void main(String[] args) {

// TODO Auto-generated method stub

// obtain user input from JOptionPane input dialogs

String one =

JOptionPane.showInputDialog( "Enter first integer" );

String two =

JOptionPane.showInputDialog( "Enter second integer" );

// convert String inputs to int values for use in a calculation

int a = Integer.parseInt(one);

int b = Integer.parseInt(two);

int temp=0;

// display result in a JOptionPane message dialog

JOptionPane.showMessageDialog( null, "Value No. 1 : " + a + "\n"

+ "Value No. 2 : " + b, "Before Swapping", JOptionPane.INFORMATION_MESSAGE );

/*swapping */

temp = a;

a = b;

b = temp;

JOptionPane.showMessageDialog( null, "Value No. 1 : " + a + "\n"

+ "Value No. 2 : " + b, "After Swapping", JOptionPane.INFORMATION_MESSAGE );

}

Friday, July 29, 2022

Removing yourself from a collaborator's repository in Github

Fever Checker in TypeScript

Machine Problem

Write a program that will check if the given patients temperature of 41 degrees Celsius and would display on screen if he/she has fever depending whether his/her temperature exceeds 39 degrees Celsius. If it is less than that, then the patient has normal temperature. Using if-else statement.

My email address is the following jakerpomperada@gmail.com, jakerpomperada@aol.com, and jakerpomperada@yahoo.com.

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Program Listing

/* fever_checker.ts
   Jake Rodriguez Pomperada, MAED-IT, MIT
   www.jakerpomperada.com and www.jakerpomperada.blogspot.com
   jakerpomperada@gmail.com
   July 21, 2022    8:52 PM    Thursday
   Bacolod City, Negros Occidental
*/

var body_temp : number = 38;
var result_one : string = "";
var result_two : string = "";

// It the patients body temperature less than (<) 39 
// degrees celsius then the patient does not a fever. 

if (body_temp < 39) {
  result_one = "The patient's body temperature of " +body_temp + " degrees Celsius.\n";
  result_two = "You don't have a fever!\n";
} else
// It the patients body temperature greater than or equal (>=) 
// degrees celsius then the patient does not a fever. 
{
result_one = "The patient's body temperature of " +body_temp + " degrees Celsius.\n";
result_two = "You have a fever!\n"; 
}

console.log();
console.log("\tFever Checker in TypeScript\n");
console.log(result_one);
console.log(result_two);
console.log("\tEnd of Program\n");

Thursday, July 28, 2022

Numerical Table in C

A simple program that I wrote to generate numerical table using C programming language.

My email address is the following jakerpomperada@gmail.com, jakerpomperada@aol.com, and jakerpomperada@yahoo.com.

My mobile number here in the Philippines is 09173084360.

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Program Listing

Write a program that displays the following table using C language

p p*5 p*10

5 25 50

10 50 100

25 125 250

50 250 500

#include <stdio.h>

int main()

{

int p[4] = {5,10,25,50};

int a=0;

printf("\n\n");

printf("Numerical Table in C\n\n");

printf("p\tp*5\tp*10\n\n");

for (a=0; a<4; a++) {

printf(" %d \t %d \t %d\n",p[a],a[p]*5,a[p]*10);

}

Numerical Table in C++

A sample program to generate numerical table in C++ programming language. The code works with C++ 11 Standard and Higher Version.

My email address is the following jakerpomperada@gmail.com, jakerpomperada@aol.com, and jakerpomperada@yahoo.com.

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=================================================

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Jake Pomperada

09173084360

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Thank you very much for your support.

Program Listing

Write a program that displays the following table:

p p*5 p*10

5 25 50

10 50 100

25 125 250

50 250 500

Use C++ 11 or Higher in running this program

#include <iostream>

int main()

{

std::cout <<"\n\n";

std::cout << "Numerical Table in C++\n\n";

std::cout << "p\tp*5\tp*10\n\n";

for(int p : {5, 10, 25, 50})

std::cout << p << '\t' << p * 5 << '\t' << p * 10 << '\n';

}

Wednesday, July 27, 2022

US Dollar To Philippine Peso in TypeScript

A simple program that I wrote to convert the given us dollar to philippine peso using typescript programming language.

My email address is the following jakerpomperada@gmail.com, jakerpomperada@aol.com, and jakerpomperada@yahoo.com.

My mobile number here in the Philippines is 09173084360.

Please subscribe to my channel https://www.youtube.com/channel/UCOs-lpOoIeJoh6gpJthPoGg

=================================================

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Jake Pomperada

09173084360

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Program Listing

/* us_peso.ts
   Jake Rodriguez Pomperada, MAED-IT, MIT
   www.jakerpomperada.com and www.jakerpomperada.blogspot.com
   jakerpomperada@gmail.com
   July 12, 2022   10:35 PM   Tuesday
   Bacolod City, Negros Occidental
*/

var us_dollar = 65.23;

// Philippine Peso Equivalent
const Phil_Peso =  56.52;

// Calculate US Dollar To Philippine Peso
const solve =(us_dollar * Phil_Peso);

// This code for two decimal places
let round_result = Math.round(solve*100)/100;

console.log();
console.log("US Dollar To Philippines Peso in TypeScript\n");
console.log("$ " + us_dollar + " US Dollar is equal to  PHP " + round_result + " Philippine Peso.\n");
console.log("End of Program\n");

Tuesday, July 26, 2022

Parenthesis in Java

A simple program to demonstrate how to use parenthesis in Java programming language.

My email address is the following jakerpomperada@gmail.com, jakerpomperada@aol.com, and jakerpomperada@yahoo.com.

My mobile number here in the Philippines is 09173084360.

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=================================================

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Program Listing


public class Parenthesis {
    public static void main(String[] args) {
                System.out.println();
                System.out.print("Parenthesis in Java");
                System.out.println("\n");
                System.out.println("The sum = " + 16 + 56);
                System.out.println("The sum = " + (16 + 56));
                System.out.println(16 + 56 + " is the sum");
                System.out.println("The sum of " + 16 + " and " + 56 + " = " + (16 + 56));
                System.out.println();
                System.out.print("End of Program");
                System.out.println();
            }
        }

Read a Text File in C

A simple program that I wrote to read a text file using C programming language.

My email address is the following jakerpomperada@gmail.com, jakerpomperada@aol.com, and jakerpomperada@yahoo.com.

My mobile number here in the Philippines is 09173084360.

Please subscribe to my channel https://www.youtube.com/channel/UCOs-lpOoIeJoh6gpJthPoGg

=================================================

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GCash Account

Jake Pomperada

09173084360

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Thank you very much for your support.

Program Listing

/*read_file.c

Author : Mr. Jake Rodriguez Pomperada,BSCS,MAED-IT

Date : December 2, 2018 Sunday 11:26 AM

Location : Bacolod City, Negros Occidental

Website : http://www.jakerpomperada.com

Emails : jakerpomperada@jakerpomperada.com

jakerpomperada@gmail.com

jakerpomperada@yahoo.com

jakerpomperada@aol.com

#include <stdio.h>

#include <stdlib.h> /* For exit() function */

#include <stdlib.h> /* For system("pause"); statement */

int main()

{

char c[1000];

FILE *fptr;

if ((fptr = fopen("write.txt", "r")) == NULL)

{

printf("Error! opening file");

/* Program exits if file pointer returns NULL. */

exit(1);

}

/* reads text until newline */

fscanf(fptr,"%[^\n]", c);

printf("\n");

printf("\tReading Data from the file:\n\n%s", c);

fclose(fptr);

printf("\n\n");

printf("\tEND OF PROGRAM");

printf("\n\n");

system("pause");

}