Sending Email in Java

Here is a program that I wrote using Java to send email the code works using Java API for email that is freely available in the Internet I hope you will find my work useful.

I am currently accepting programming work, it project, school programming projects , thesis and capstone projects, IT consulting work and web development work kindly contact me in the following email address for further details. Thank you.

My email address are the following jakerpomperada@gmail.com and jakerpomperada@yahoo.com.

My mobile number here in the Philippines is 09173084360.

My telephone number at home here in Bacolod City, Negros Occidental Philippines is  +63 (034) 4335675.

Sample Program Output

Program Listing

Sendingemail.java

package sendingemail;

import java.util.Properties;    

import javax.mail.*;    

import javax.mail.internet.*;

/**

 *

 * @author Jake R. Pomperada

 * Date April 22, 2018  Sunday

 * Bacolod City, Negros Occidental Philippines

 */

class Mailer{  

    public static void send(String from,String password,String to,String sub,String msg){  

          //Get properties object    

          Properties props = new Properties();    

          props.put("mail.smtp.host", "smtp.gmail.com");    

          props.put("mail.smtp.socketFactory.port", "465");    

          props.put("mail.smtp.socketFactory.class",    

                    "javax.net.ssl.SSLSocketFactory");    

          props.put("mail.smtp.auth", "true");    

          props.put("mail.smtp.port", "465");    

          //get Session   

          Session session = Session.getDefaultInstance(props,    

           new javax.mail.Authenticator() {    

           protected PasswordAuthentication getPasswordAuthentication() {    

           return new PasswordAuthentication(from,password);  

           }    

          });    

          //compose message    

          try {    

           MimeMessage message = new MimeMessage(session);    

           message.addRecipient(Message.RecipientType.TO,new InternetAddress(to));    

           message.setSubject(sub);    

           message.setText(msg);    

           //send message  

           Transport.send(message);    

           System.out.println("Email Sending in Java");

           System.out.println();

           System.out.println("Your Email Sent successfully");  

           System.out.println();

           System.out.println("End of Program !!!");

          } catch (MessagingException e) {throw new RuntimeException(e);}    

             

    }  

}  

public class Sendingemail {

       public static void main(String[] args) {

    //from,password,to,subject,message  

     Mailer.send("jakerpomperada@gmail.com","yourpassword","jakerpomperada@gmail.com","My first email send in Java",

             "This is my first email send using Java !!! \n Thank you for using this Software \n "

                     + " Written By Mr. Jake R. Pomperada, MAED-IT");  

     //change from, password and to  

    }

    

}

DOWNLOAD SOURCE CODE HERE

Login and Registration System in PHP and MySQLi

A very simple code that I wrote to demonstrate login and registration using PHP and MySQLI it supports the latest version of PHP 7.

I am currently accepting programming work, it project, school programming projects , thesis and capstone projects, IT consulting work and web development work kindly contact me in the following email address for further details. Thank you.

My email address are the following jakerpomperada@gmail.com and jakerpomperada@yahoo.com.

My mobile number here in the Philippines is 09173084360.

My telephone number at home here in Bacolod City, Negros Occidental Philippines is  +63 (034) 4335675.

Sample Program Output

DOWNLOAD SOURCE CODE HERE

Golden Star Enterprises Payroll System in PHP and MySQLIi

Here is a sample program that I wrote using PHP and MySQLi for a client before the will compute the salary of the employee in the company.

I am currently accepting programming work, it project, school programming projects , thesis and capstone projects, IT consulting work and web development work kindly contact me in the following email address for further details. Thank you.

My email address are the following jakerpomperada@gmail.com and jakerpomperada@yahoo.com.

My mobile number here in the Philippines is 09173084360.

My telephone number at home here in Bacolod City, Negros Occidental Philippines is  +63 (034) 4335675.

Sample Program Output

DOWNLOAD SOURCE CODE HERE

Basic CRUD Application in Java JDBC and MySQL

In this article I would like to share with you a collection of routine to implement CRUD application in Java using JDBC and MySQL.

I am currently accepting programming work, it project, school programming projects , thesis and capstone projects, IT consulting work and web development work kindly contact me in the following email address for further details. Thank you.

My email address are the following jakerpomperada@gmail.com and jakerpomperada@yahoo.com.

My mobile number here in the Philippines is 09173084360.

My telephone number at home here in Bacolod City, Negros Occidental Philippines is  +63 (034) 4335675.

Program Listing

Jdbc.java

package com.jdbc.demo;

import java.sql.*;

public class Jdbc {

    private static Connection connection;

    // create table script

    // create table item(id int primary key auto_increment, name varchar(20), price double);

    public static void main(String[] args) throws Exception {

        String dbURL = "jdbc:mysql://localhost:3306/product";

        String username = "root";

        String password = "";

        try {

            Class.forName("com.mysql.jdbc.Driver").newInstance();

            connection = DriverManager.getConnection(dbURL, username, password);

            if (connection != null) {

                System.out.println("Connected");

            }

            // insert record

            //insertItem("Pencil",5.50);

            //insertItem("Ballpen",9.00);

            //updateItem("Pencil",6.00);

            deleteItem("Pencil");

            // select records

            selectItems();

            connection.close();

        } catch (Exception e) {

            e.printStackTrace();

        }

    }

    private static void deleteItem(String name) throws Exception {

        String sql = "DELETE FROM Item WHERE name=?";

        PreparedStatement statement = connection.prepareStatement(sql);

        statement.setString(1, name);

        int rowsDeleted = statement.executeUpdate();

        if (rowsDeleted > 0) {

            System.out.println("An item was deleted successfully!");

        }

    }

    private static void updateItem(String name, Double price) throws Exception {

        String sql = "UPDATE Item SET price=? WHERE name=?";

        PreparedStatement statement = connection.prepareStatement(sql);

        statement.setDouble(1, price);

        statement.setString(2, name);

        int rowsUpdated = statement.executeUpdate();

        if (rowsUpdated > 0) {

            System.out.println("An existing item was updated successfully!");

        }

    }

    private static void selectItems() throws Exception {

        String sql = "SELECT * FROM Item";

        Statement statement = connection.createStatement();

        ResultSet result = statement.executeQuery(sql);

        int count = 0;

        while (result.next()){

            String name = result.getString(2);

            Double price = result.getDouble(3);

            String output = "Item #%d: %s - %s";

            System.out.println(String.format(output, ++count, name, price));

        }

    }

    private static void insertItem(String name, Double price) throws Exception {

        String sql = "INSERT INTO Item (name, price) VALUES (?, ?)";

        PreparedStatement statement = connection.prepareStatement(sql);

        statement.setString(1, name);

        statement.setDouble(2, price);

        int rowsInserted = statement.executeUpdate();

        if (rowsInserted > 0) {

            System.out.println("A new item was inserted successfully!");

        }

    }

}

Standard Hardware Payroll System in PHP and MySQL

This is a payroll system that I wrote to learn more about PHP and MySQL programming I hope you will find my work useful.

I am currently accepting programming work, it project, school programming projects , thesis and capstone projects, IT consulting work and web development work kindly contact me in the following email address for further details. Thank you.

My email address are the following jakerpomperada@gmail.com and jakerpomperada@yahoo.com.

My mobile number here in the Philippines is 09173084360.

My telephone number at home here in Bacolod City, Negros Occidental Philippines is  +63 (034) 4335675.

DOWNLOAD SOURCE CODE HERE

Arrays in C

A very simple program in C that shows how to use arrays as your data structure.

I am currently accepting programming work, it project, school programming projects , thesis and capstone projects, IT consulting work and web development work kindly contact me in the following email address for further details. Thank you.

My email address are the following jakerpomperada@gmail.com and jakerpomperada@yahoo.com.

My mobile number here in the Philippines is 09173084360.

My telephone number at home here in Bacolod City, Negros Occidental Philippines is  +63 (034) 4335675.

Program Listing

arrays.c

#include <stdio.h>

#include <conio.h>

#define MAX 5

void insert ( int *, int pos, int num ) ;

void del ( int *, int pos ) ;

void reverse ( int * ) ;

void display ( int * ) ;

void search ( int *, int num ) ;

void main( )

{

int arr[5] ;

clrscr( ) ;

insert ( arr, 1, 11 ) ;

insert ( arr, 2, 12 ) ;

insert ( arr, 3, 13 ) ;

insert ( arr, 4, 14 ) ;

insert ( arr, 5, 15 ) ;

printf ( "\nElements of Array: " ) ;

display ( arr ) ;

del ( arr, 5 ) ;

del ( arr, 2 ) ;

printf ( "\n\nAfter deletion: " ) ;

display ( arr ) ;

insert ( arr, 2, 222 ) ;

insert ( arr, 5, 555 ) ;

printf ( "\n\nAfter insertion: " ) ;

display ( arr ) ;

reverse ( arr ) ;

printf ( "\n\nAfter reversing: " ) ;

display ( arr ) ;

search ( arr, 222 ) ;

search ( arr, 666 ) ;

getch( ) ;

}

/* inserts an element num at given position pos */

void insert ( int *arr, int pos, int num )

{

/* shift elements to right */

int i ;

for ( i = MAX - 1 ; i >= pos ; i-- )

arr[i] = arr[i - 1] ;

arr[i] = num ;

}

/* deletes an element from the given position pos */

void del ( int *arr, int pos )

{

/* skip to the desired position */

int i ;

for ( i = pos ; i < MAX ; i++ )

arr[i - 1] = arr[i] ;

arr[i - 1] = 0 ;

}

/* reverses the entire array */

void reverse ( int *arr )

{

int i ;

for ( i = 0 ; i < MAX / 2 ; i++ )

{

int temp = arr[i] ;

arr[i] = arr[MAX - 1 - i] ;

arr[MAX - 1 - i] = temp ;

}

}

/* searches array for a given element num */

void search ( int *arr, int num )

{

/* Traverse the array */

int i ;

for ( i = 0 ; i < MAX ; i++ )

{

if ( arr[i] == num )

{

printf ( "\n\nThe element %d is present at %dth position.", num, 

i + 1 ) ;

return ;

}

}

if ( i == MAX )

printf ( "\n\nThe element %d is not present in the array.", num ) ;

}

/* displays the contents of a array */

void display ( int *arr )

{

/* traverse the entire array */

int i ;

printf ( "\n" ) ;

for ( i = 0 ; i < MAX ; i++ )

printf ( "%d\t", arr[i] ) ;

}

Postfix To Prefix Converter in C

A program that will convert a format from postfix to prefix in C language.

I am currently accepting programming work, it project, school programming projects , thesis and capstone projects, IT consulting work and web development work kindly contact me in the following email address for further details. Thank you.

My email address are the following jakerpomperada@gmail.com and jakerpomperada@yahoo.com.

My mobile number here in the Philippines is 09173084360.

My telephone number at home here in Bacolod City, Negros Occidental Philippines is  +63 (034) 4335675.

Program Listing

postfix.c

#include <stdio.h>

#include <conio.h>

#include <string.h>

#define MAX 50

struct postfix

{

char stack[MAX][MAX], target[MAX] ;

char temp1[2], temp2[2] ;

char str1[MAX], str2[MAX], str3[MAX] ;

int i, top ;

} ;

void initpostfix ( struct postfix * ) ;

void setexpr ( struct postfix *, char * ) ;

void push ( struct postfix *, char * ) ;

void pop ( struct postfix *, char * ) ;

void convert ( struct postfix * ) ;

void show ( struct postfix ) ;

void main( )

{

struct postfix q ;

char expr[MAX] ;

clrscr( ) ;

initpostfix ( &q ) ;

printf ( "\nEnter an expression in postfix form: " ) ;

gets ( expr ) ;

setexpr ( &q, expr ) ;

convert ( &q ) ;

printf ( "\nThe Prefix expression is: " ) ;

show ( q ) ;

getch( ) ;

}

/* initializes the elements of the structure */

void initpostfix ( struct postfix *p )

{

p -> i = 0 ;

p -> top = -1 ;

strcpy ( p -> target, "" ) ;

}

/* copies given expr. to target string */

void setexpr ( struct postfix *p, char *c )

{

strcpy ( p -> target, c ) ;

}

/* adds an operator to the stack */

void push ( struct postfix *p, char *str )

{

if ( p -> top == MAX - 1 )

printf ( "\nStack is full." ) ;

else

{

p -> top++ ;

strcpy ( p -> stack[p -> top], str ) ;

}

}

/* pops an element from the stack */

void pop ( struct postfix *p, char *a )

{

if ( p -> top == -1 )

printf ( "\nStack  is empty." ) ;

else

{

strcpy ( a, p -> stack[p -> top] ) ;

p -> top-- ;

}

}

/* converts given expr. to prefix form */

void convert ( struct postfix *p )

{

while ( p -> target[p -> i] != '\0' )

{

/* skip whitespace, if any */

if ( p -> target[p -> i] == ' ')

p -> i++ ;

if( p -> target[p -> i] == '%' || p -> target[p -> i] == '*' ||

p -> target[p -> i] == '-' || p -> target[p -> i] == '+' ||

p -> target[p -> i] == '/' || p -> target[p -> i] == '$' )

{

pop ( p, p -> str2 ) ;

pop ( p, p -> str3 ) ;

p -> temp1[0] = p -> target[ p -> i] ;

p -> temp1[1] = '\0' ;

strcpy ( p -> str1, p -> temp1 ) ;

strcat ( p -> str1, p -> str3 ) ;

strcat ( p -> str1, p -> str2 ) ;

push ( p, p -> str1 ) ;

}

else

{

p -> temp1[0] = p -> target[p -> i] ;

p -> temp1[1] = '\0' ;

strcpy ( p -> temp2, p -> temp1 ) ;

push ( p, p -> temp2 ) ;

}

p -> i++ ;

}

}

/* displays the prefix form of expr. */

void show ( struct postfix p )

{

char *temp = p.stack[0] ;

while ( *temp )

{

printf ( "%c ", *temp ) ;

temp++ ;

}

}

Linked List as Stack in C

A simple program to demonstrate the concept of linked list as stack in C.

I am currently accepting programming work, it project, school programming projects , thesis and capstone projects, IT consulting work and web development work kindly contact me in the following email address for further details. Thank you.

My email address are the following jakerpomperada@gmail.com and jakerpomperada@yahoo.com.

My mobile number here in the Philippines is 09173084360.

My telephone number at home here in Bacolod City, Negros Occidental Philippines is  +63 (034) 4335675.

Program Listing

stack.c

#include <stdio.h>

#include <conio.h>

#include <alloc.h>

/* structure containing data part and linkpart */

struct node

{

int data ;

struct node *link ;

} ;

void push ( struct node **, int ) ;

int pop ( struct node ** ) ;

void delstack ( struct node ** ) ;

void main( )

{

struct node *s = NULL ;

int i ;

clrscr( ) ;

push ( &s, 14 ) ;

push ( &s, -3 ) ;

push ( &s, 18 ) ;

push ( &s, 29 ) ;

push ( &s, 31 ) ;

push ( &s, 16 ) ;

i = pop ( &s ) ;

printf ( "\nItem popped: %d", i ) ;

i = pop ( &s ) ;

printf ( "\nItem popped: %d", i ) ;

i = pop ( &s ) ;

printf ( "\nItem popped: %d", i ) ;

delstack ( &s ) ;

getch( ) ;

}

/* adds a new node to the stack as linked list */

void push ( struct node **top, int item )

{

struct node *temp ;

temp = ( struct node * ) malloc ( sizeof ( struct node ) ) ;

if ( temp == NULL )

printf ( "\nStack is full." ) ;

temp -> data = item ;

temp -> link = *top ;

*top = temp ;

}

/* pops an element from the stack */

int pop ( struct node **top )

{

struct node *temp ;

int item ;

if ( *top == NULL )

{

printf ( "\nStack is empty." ) ;

return NULL ;

}

temp = *top ;

item = temp -> data ;

*top = ( *top ) -> link ;

free ( temp ) ;

return item ;

}

/* deallocates memory */

void delstack ( struct node **top )

{

struct node *temp ;

if ( *top == NULL )

return ;

while ( *top != NULL )

{

temp = *top ;

*top = ( *top ) -> link ;

free ( temp ) ;

}

}