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Nov 19, 2022CodeCatch
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Send Email from Java

Nov 19, 2022CodeCatch

0 likes • 3 views

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);
}

quick sort

Nov 19, 2022CodeCatch

0 likes • 0 views

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));
}
}

Me

Feb 6, 2021Daedalus

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public class Daedalus extends Athenian
{
private Story story;
public ArrayList<Skill> skills = new ArrayList<Skill>();
public ArrayList<Athenian> children = new ArrayList<Athenian>();
public Daedalus(Story story, ArrayList<Skill> inherentSkills)
{
if(story != null)
System.out.println("ERROR No one is created with a story.");
skills.add(inherentSkills);
}
public Momento advanceStory(Scene s)
{
System.err.println("ERROR Don't know how to proceed...");
}
}
//██╗  ░█████╗░███╗░░░███╗  ██████╗░░█████╗░███████╗██████╗░░█████╗░██╗░░░░░██╗░░░██╗░██████╗
//██║  ██╔══██╗████╗░████║  ██╔══██╗██╔══██╗██╔════╝██╔══██╗██╔══██╗██║░░░░░██║░░░██║██╔════╝
//██║  ███████║██╔████╔██║  ██║░░██║███████║█████╗░░██║░░██║███████║██║░░░░░██║░░░██║╚█████╗░
//██║  ██╔══██║██║╚██╔╝██║  ██║░░██║██╔══██║██╔══╝░░██║░░██║██╔══██║██║░░░░░██║░░░██║░╚═══██╗
//██║  ██║░░██║██║░╚═╝░██║  ██████╔╝██║░░██║███████╗██████╔╝██║░░██║███████╗╚██████╔╝██████╔╝
//╚═╝  ╚═╝░░╚═╝╚═╝░░░░░╚═╝  ╚═════╝░╚═╝░░╚═╝╚══════╝╚═════╝░╚═╝░░╚═╝╚══════╝░╚═════╝░╚═════╝░

Add Binary Numbers

Oct 15, 2022CodeCatch

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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;
}

Puzzle 1

Feb 6, 2021Daedalus

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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);
}
}
}
//██╗  ░█████╗░███╗░░░███╗  ██████╗░░█████╗░███████╗██████╗░░█████╗░██╗░░░░░██╗░░░██╗░██████╗
//██║  ██╔══██╗████╗░████║  ██╔══██╗██╔══██╗██╔════╝██╔══██╗██╔══██╗██║░░░░░██║░░░██║██╔════╝
//██║  ███████║██╔████╔██║  ██║░░██║███████║█████╗░░██║░░██║███████║██║░░░░░██║░░░██║╚█████╗░
//██║  ██╔══██║██║╚██╔╝██║  ██║░░██║██╔══██║██╔══╝░░██║░░██║██╔══██║██║░░░░░██║░░░██║░╚═══██╗
//██║  ██║░░██║██║░╚═╝░██║  ██████╔╝██║░░██║███████╗██████╔╝██║░░██║███████╗╚██████╔╝██████╔╝
//╚═╝  ╚═╝░░╚═╝╚═╝░░░░░╚═╝  ╚═════╝░╚═╝░░╚═╝╚══════╝╚═════╝░╚═╝░░╚═╝╚══════╝░╚═════╝░╚═════╝░

LeetCode #21: Merge Two Sorted Lists

Oct 15, 2022CodeCatch

0 likes • 0 views

public class Solution {
public ListNode mergeTwoLists(ListNode l1, ListNode l2) {
ListNode head = new ListNode(0);
ListNode handler = head;
while(l1 != null && l2 != null) {
if (l1.val <= l2.val) {
handler.next = l1;
l1 = l1.next;
} else {
handler.next = l2;
l2 = l2.next;
}
handler = handler.next;
}
if (l1 != null) {
handler.next = l1;
} else if (l2 != null) {
handler.next = l2;
}
return head.next;
}
}