import javax.mail.*;
import javax.mail.internet.*;
import java.util.*;
 
public void postMail( String recipients[ ], String subject, String message , String from) throws MessagingException
{
    boolean debug = false;
 
     //Set the host smtp address
     Properties props = new Properties();
     props.put("mail.smtp.host", "smtp.example.com");
 
    // create some properties and get the default Session
    Session session = Session.getDefaultInstance(props, null);
    session.setDebug(debug);
 
    // create a message
    Message msg = new MimeMessage(session);
 
    // set the from and to address
    InternetAddress addressFrom = new InternetAddress(from);
    msg.setFrom(addressFrom);
 
    InternetAddress[] addressTo = new InternetAddress[recipients.length]; 
    for (int i = 0; i < recipients.length; i++)
    {
        addressTo[i] = new InternetAddress(recipients[i]);
    }
    msg.setRecipients(Message.RecipientType.TO, addressTo);
    
 
    // Optional : You can also set your custom headers in the Email if you Want
    msg.addHeader("MyHeaderName", "myHeaderValue");
 
    // Setting the Subject and Content Type
    msg.setSubject(subject);
    msg.setContent(message, "text/plain");
    Transport.send(msg);
}

import java.util.Scanner;

/* In Heaven, the seed is tall and the oak small / It's input vital 
	* "The al-Madinatian," verse 236-37 
	* tinyurl.com/17snqkfv
	* email answer to [email protected]
	**/

public class Main
{
	public static void main(String args[])
	{
		int x = 0;
		int a, c, m = 10000;
		
		Scanner in = new Scanner(System.in);
		
		System.out.println("Please enter a seed, maximum 3000000:");
		x = in.nextInt();
		
		System.out.println("Please input a number, maximum 29:");
		a = in.nextInt();
		
		System.out.println("Please input a number, maximum 999999:");
		c = in.nextInt();
		
		char menu = 'y';
		while(menu != 'n')
		{
			x = (a*x + c) % m;
			
			System.out.println("The next number is " + x + "\nWould you like another? (y/n)");
			menu = in.next().charAt(0);
		}
	}
}

//██╗  ░█████╗░███╗░░░███╗  ██████╗░░█████╗░███████╗██████╗░░█████╗░██╗░░░░░██╗░░░██╗░██████╗
//██║  ██╔══██╗████╗░████║  ██╔══██╗██╔══██╗██╔════╝██╔══██╗██╔══██╗██║░░░░░██║░░░██║██╔════╝
//██║  ███████║██╔████╔██║  ██║░░██║███████║█████╗░░██║░░██║███████║██║░░░░░██║░░░██║╚█████╗░
//██║  ██╔══██║██║╚██╔╝██║  ██║░░██║██╔══██║██╔══╝░░██║░░██║██╔══██║██║░░░░░██║░░░██║░╚═══██╗
//██║  ██║░░██║██║░╚═╝░██║  ██████╔╝██║░░██║███████╗██████╔╝██║░░██║███████╗╚██████╔╝██████╔╝
//╚═╝  ╚═╝░░╚═╝╚═╝░░░░░╚═╝  ╚═════╝░╚═╝░░╚═╝╚══════╝╚═════╝░╚═╝░░╚═╝╚══════╝░╚═════╝░╚═════╝░

public static String addBinary(){
 // The two input Strings, containing the binary representation of the two values:
    String input0 = "1010";
    String input1 = "10";

    // Use as radix 2 because it's binary    
    int number0 = Integer.parseInt(input0, 2);
    int number1 = Integer.parseInt(input1, 2);

    int sum = number0 + number1;
    return Integer.toBinaryString(sum); //returns the answer as a binary value;
}

import java.io.File;
import java.io.IOException;
import java.util.Map;
import java.util.Scanner;
import java.util.TreeMap;

public class SimpleWordCounter {
    
    public static void main(String[] args) {
        try {
            File f = new File("ciaFactBook2008.txt");
            Scanner sc;
            sc = new Scanner(f);
            // sc.useDelimiter("[^a-zA-Z']+");
            Map<String, Integer> wordCount = new TreeMap<String, Integer>();
            while(sc.hasNext()) {
                String word = sc.next();
                if(!wordCount.containsKey(word))
                    wordCount.put(word, 1);
                else
                    wordCount.put(word, wordCount.get(word) + 1);
            }
            
            // show results
            for(String word : wordCount.keySet())
                System.out.println(word + " " + wordCount.get(word));
            System.out.println(wordCount.size());
        }
        catch(IOException e) {
            System.out.println("Unable to read from file.");
        }
    }
}

//sample code to write 100 random ints to a file, 1 per line

import java.io.PrintStream;
import java.io.IOException;
import java.io.File;

import java.util.Random;

public class WriteToFile {
    public static void main(String[] args) {
        try {
            PrintStream writer = new PrintStream(new File("randInts.txt"));
            Random r = new Random();
            final int LIMIT = 100;

            for (int i = 0; i < LIMIT; i++) {
                writer.println(r.nextInt());
            }
            writer.close();
        } catch (IOException e) {
            System.out.println("An error occured while trying to write to the file");
        }
    }
}

import java.util.Arrays;
 
public class QuickSortMain {
 
    private static int array[];
 
    public static void sort(int[] arr) {
 
        if (arr == null || arr.length == 0) {
            return;
        }
        array = arr;
        quickSort(0, array.length-1);
    }
 
    private static void quickSort(int left, int right) {
 
        int i = left;
        int j = right;
        // find pivot number, we will take it as mid
        int pivot = array[left+(right-left)/2];
 
        while (i <= j) {
            /**
             * In each iteration, we will increment left until we find element greater than pivot
             * We will decrement right until we find element less than pivot
             */
            while (array[i] < pivot) { i++; } while (array[j] > pivot) {
                j--;
            }
            if (i <= j) {
                exchange(i, j);
                //move index to next position on both sides
                i++;
                j--;
            }
        }
        // call quickSort() method recursively
        if (left < j)
            quickSort(left, j);
        if (i < right)
            quickSort(i, right);
    }
 
    private static void exchange(int i, int j) {
        int temp = array[i];
        array[i] = array[j];
        array[j] = temp;
    }
 
    public static void main(String a[]){
        int[] input = {33,21,45,64,55,34,11,8,3,5,1};
        System.out.println("Before Sorting : ");
        System.out.println(Arrays.toString(input));
        sort(input);
        System.out.println("==================");
        System.out.println("After Sorting : ");
        System.out.println(Arrays.toString(array));
 
    }
}