Programs in Computer Engineering

Visualforce Page with Wrapper Class Custom Controller and Pagination > Apex and Visualforce Salesforce Development and Implementations Wrapper Classes in Salesforce: Lets start by understanding what a Wrapper Class is. A wrapper or container class is a class, data structure, or an abstract data type whose instances are a collections of multiple objects. Its a custom type defined by the Salesforce Dev where he defines the properties of the wrapper class. Within Apex & Visualforce this can be extremely helpful to achieve many business scenarios within the Salesforce CRM software. Using Wrapper classes we can have the ability to check few records from the displayed list and process them for some action. 

Visualforce Page with Custom Controller and Pagination > Apex and Visualforce Salesforce Development and Implementations As I go on learning about development on and using the Salesforce Platform, I have decided to share my practice sessions / codes, hoping it could help someone in the future. Here is the code for a Visualforce Page with a Custom Apex Controller, that displays Account and User Standard Objects information and also has Pagination implemented on the Account Object. Code:

Distributed Deadlock Detection using Chandy Haas Misra > Java Program Parallel and Distributed Systems Program: package chandyhaasmisra; import java.util.*; class Message {

Implement Client/Server using RPC > Java Program Parallel and Distributed Systems

K Nearest Neighbors (KNN) > Python Program Machine Learning knn.py from numpy import * import operator def createDataSet():     group = array([[1.0,1.1],[1.0,1.0],[0,0],[0,0.1]])     labels = ['A','A','B','B']     return group, labels

K-Means Clustering Algorithm > Java Program Data Warehousing and Mining Program: import java.util.*; public class KMeans {

Wumpus World Problem Implementation > Java Program Artificial Intelligence Program: import java.util.*; class Environment {

Playfair Cipher Implementation > C Program Cryptography and System Security Program:

Transposition Cipher Implementation > C Program Cryptography and System Security Program: #include<stdio.h> int check(int x,int y) {

Vigenere Cipher Implementation > C Program Cryptography and System Security Program: #include<stdio.h>

Hill Cipher Implementation > C Program Cryptography and System Security Program: #include<stdio.h> int check(int x) {

Decision Tree Algorithm for Classification > Java Program Data Warehousing and Mining Program: import java.util.*; Decision Tree algorithm in java class tree {

Brute Force Algorithm for Mining Association Rule > Java Program Data Warehousing and Mining Program: import java.util.*; class transaction {

K-Means Clustering Algorithm > Java Program Data Warehousing and Mining Program: import java.util.*; class k_means {

Optimal Page Replacement > Java Program   Operating Systems Program: import java.util.*; class PR3 {

To implement local search algorithm for Travelling Salesman Problem using Hill Climb > Java Program Artificial Intelligence Program: package javaapplication5; import java.util.*; public class JavaApplication5 {

Exploit Remote Computer using Metasploit > Kali Linux Network Technologies Using IP of Victim: Initializing msf console: root@kali:~# msfconsole Frustrated with proxy pivoting? Upgrade to layer-2 VPN pivoting with Metasploit Pro -- type 'go_pro' to launch it now.        =[ metasploit v4.8.2-2014010101 [core:4.8 api:1.0] + -- --=[ 1246 exploits - 678 auxiliary - 198 post + -- --=[ 324 payloads - 32 encoders - 8 nops

Harvester Attack Using Social Engineering Toolkit > Kali Linux Network Technologies Start SEToolkit: root@kali:~# setoolkit [-] New set_config.py file generated on: 2016-09-25 17:56:48.428780 [-] Verifying configuration update... [*] Update verified, config timestamp is: 2016-09-25 17:56:48.428780 [*] SET is using the new config, no need to restart

Demonstration of ARP Spoofing and Detection using XARP > Kali Linux Networking Technologies ARPSPOOFING: Enable IP Forwarding: root@kali:~# echo 1 >/proc/sys/net/ipv4/ip_forward Edit Iptables: root@kali:~# iptables -t nat -A PREROUTING -p tcp --destination-port 80 -j REDIRECT --to-port 8080

Nmap Network Technologies Nmap  For Public IP: *Using nmap: root@kali:~# nmap 175.20.101.2 Starting Nmap 6.40 ( http://nmap.org ) at 2016-07-26 22:02 IST Nmap scan report for 2.101.20.175.adsl-pool.jlccptt.net.cn (175.20.101.2) Host is up (0.00057s latency). Not shown: 990 filtered ports PORT     STATE SERVICE 21/tcp   open  ftp 25/tcp   open  smtp 80/tcp   open  http 110/tcp  open  pop3 143/tcp  open  imap 443/tcp  open  https 465/tcp  open  smtps 587/tcp  open  submission 1863/tcp open  msnp 5050/tcp open  mmcc Nmap done: 1 IP address (1 host up) scanned in 5.40 seconds