Create Mail Client

in this post, mail client created using Java mail library. Java mail is a special library for email applications that can be downloaded for free at www.sun.com.
To make the email client required an order to be able to access SMTP, POP3, and IMAP. SMTP is a protocol to be able to send email. While POP3 and IMAP are protocols to be able to download email messages from the Mail Server.
To send a message use the following command:



In the above listing can be seen that done by sending an email calling new Mime Message class in Java Mail library. Object of the class to fill the properties of data such as email subject, email messages, and Date. Then the object of Mime Message sent by calling the transport method.
Meanwhile, to download the messages to look the this listing as follows:

Meanwhile, to connect to the Mail Client is as follows:



Described in the above listing that the input in order to connect to the Mail Server, in the pages that have been in connection input of the user, the insert into the String Buffer. Then the connection is done by making Store object and then the object is to connect with the save and send the session that contains the properties to the port SMTP authentication, POP3, IMAP and.

Simulation of ElGamal Cryptography

The following are examples of simulation programs ElGamal cryptography. This program is made with JAVA programming language, and its design interface with Net bean. You can download the project files (Indonesian version) here. click here to download

Generate Trigger Numbers

In ElGamal fruit numbers are 2 triggers, namely g and k. both must be excellent and worth less than the range of data or p. Numbers g are constants or fixed. So in this final project in the initial g value 13. The value of k is a variable or change 1 change for each plain text character.
In this final project in the form k do in a class GenerateK. Program listing is

public class GenerateK {

double kb ; double kx = 0;

public double setK (){ int prima =0;

while(prima == 0){

kx = (Math.random()*221)+1; prima = cekprima (kx); } return kx; }

public double getK (){

kb = setK(); return kb; }

private static int cekprima(double ky){

int ky1 = (int)ky; int sip =1;

int batas = (int) Math.ceil(ky/2);

if((ky1==1)||(ky1==2)){

sip=1;}

else{

for(int i=2;i <= batas;i++){

int tes = ky1 % i;

if(tes==0){sip = 0; break;}

else sip =1;} }

return sip;}}

call class is conducted generateK random integer value between 1 and 222. Then the numbers k will be test in prime testing. Prime test is testing whether an integer k prime or not, by way Modulo operations with numbers number k 2 to k \ 2. If the modulation is always not equal to zero, k can be considered prime. But if one Modulo operations produce zero, k is not prime. If it does not fit the random re-done to produce a prime k.
To get the number k, after GenerateK create a new object, do the calling method getK (). The following example program listing:

800x600

GenerateK bikink = new GenerateK ();

double kd = Math.ceil(bikink.getK());

int k = (int) kd - 1;

in decrypt and encrypt process you can lean more in the file download

Example of the Correlation Listing Program

This is an example of a simulation program to find the verse from the Koran that had problems in user input.simulation program of this correlation calculation using the assumption that the problem user input and verse in the Koran is the extracted with other text mining method (steming, parsing, tagging).

if you have questions you can write the following comment in this blog . to dwonload this file project (Indonesian Ver) click here


/ **
*
* @ Author M Syaiful Rizal
* /
public class correlation (

public static String problem [] [] = (( "adultery", "2 "},{" women", "1"));
public static String paragraph [] [] = (( "17:32", "adultery", "2", "close", "1", "cruel", "1", "path", "1", " bad "," 1 "},{" 24:2 "," adultery "," 2 "," female "," 1 "," stripes "," 1 "," law "," 1 "),
( "5:54", "apostate", "2", "religion", "1", "the", "1"));

public static String Qur'an [] [] = (( "17:32", "and do not approach adultery adultery is actually an act of evil and a bad path"),
( "24:2", "woman taken in adultery and men who commit adultery then each one deralah each of the two hundred and control stripes"),
( "5:54", "O people who believe whoever among you who apostate from the religion so Allah will bring a people that God loves them"));
private static int pnjiterasi;
static double numerator [], the denominator [], xbar [], ybar [], pmbl, korel [];
private static int x, y;
public static void main (String [] args) (
/ / TODO code application logic here
pnjiterasi = problem.length;
xbar = new double [problem.length];
for (int i = 0; i xbar [i] = hitungxbar (i);
onmouseover="this.style.backgroundColor='#ebeff9'" onmouseout="this.style.backgroundColor='#fff'" >)


ayat[][] = {{"17:32","zina","2","dekat","1","keji","1","jalan","1","" onmouseover="this.style.backgroundColor='#ebeff9'" onmouseout="this.style.backgroundColor='#fff'">paragraph.length];
for (int i = 0; i paragraph.length; i + +) (
ybar [i] = hitungybar (i);
)

numerator = new double [paragraph.length];
for (int i = 0; i <paragraph.length; i + +) (
numerator [i] = numeratorcalculate (i);
)

denominator = new double [ayat.length];
for (int i = 0; i <paragraph.length; i + +) (
denominator [i] = denomeratorcalculate (i);
)
korel = new double [paragraph.length];

for (int i = 0; i <paragraph.length; i + +) (
if (denominator [i] == 0.0)
continue;
else
korel [i] = (numerator [i] / denominator [i]);

System.out.println ( "correlation verse to" + i + "is" + korel [i]);
=(0))&&(korel[i]<=1.0)){" onmouseover="this.style.backgroundColor='#ebeff9'" onmouseout="this.style.backgroundColor='#fff'">if ((korel [i]> = (0 ))&&( korel [i] <= 1.0)) ( System.out.println (Qur'an [i] [0] + "" + Qur'an [i] [1]);
)

)

)

private static double numeratorcalculate (int i) (


/ / Calculate the numerator verse to i
/ / Calculate the value of y
tempY int [] = new int [problems.length];
for (int f = 0; f for (int g = 0; g <sub>if (problems [f] [0]. equals (sub [i] [g])) (
tempY [f] = Integer.parseInt (sub [i] [g +1]);
/ / System.out.println ( "y for the verse to" + i + "problem to" + f + "is" + tempY [f]);
)
)
)

/ / Calculate the numerator
double tempi = 0.0;
for (int f = 0; f tempi = tempi + ((Integer.parseInt (problems [f] [1])-xbar [f]) * (tempY [f]-ybar [i]));
)
/ / pmbl = tempi;
System.out.println ( "numerator verse to" + i + "is" + tempi);
return tempi;
)

private static double denumratorcalculate (int i) (
double pnyb = 0.0;
/ / calculate the denominator verse to i
/ / it to calculate the total (x-xbar) ^ 2
Double Load imgs = 0.0;
for (int f = 0; f double stack = (Integer.parseInt (problems [f] [1])-xbar [f]);
Load imgs = Load imgs + Math.pow (stack, 2);
)

/ / Number of Y
tempY int [] = new int [problem.length];
for (int f = 0; f for (int g = 0; g if (problems [f] [0]. equals (sub [i] [g])) (
tempY [f] = Integer.parseInt (sub [i] [g +1]);
/ / System.out.println ( "y for the verse to" + i + "problem to" + f + "is" + tempY [f]);
)
)
)

/ / it to calculate the total (y-ybar) ^ 2
double temp = 0.0;
for (int f = 0; f tempY double stack = [f] - ybar [i];
temp = temp + Math.pow (stack, 2);
)

pnyb = Math.sqrt (Load imgs * temp);
System.out.println ( "denominator verse to" + i + "is" + pnyb);
return pnyb;
)

private static double hitungxbar (int k) (
/ / calculate the total x
double temp = 0;
for (int i = 0; i (
temp = temp + Integer.parseInt (problems [i] [1]);
)

double result = Integer.parseInt (problems [k] [1]) / temp;
System.out.println ( "x bar is" + result);
return result;
)

private static double hitungybar (int i) (

/ / Y bar in the clause to the i
/ / calculate the total y
double temp = 0;</sub>