Mobile classrooms on various IT Skills

IT employees & engineering students are spending considerable amount of time on Highways on the way to work and back home. 

Virtual Keyboard using regular Camera

Modern home computers have come a long way, monitors have become slim, with user friendly mouse and slim CPUs. However keyboard has not changed much. Keyboard has to be wide enough to accommodate free movement of our fingers on it. Again, virtual keyboard technology uses expensive gadgets to ease typing. Hence no radical changes have happened to computer keyboards. 

We can do away with the keyboard using a simple camera and image recognition algorithm. Idea is to capture the user hand movements on a plain surface using a camera and superimpose on a keyboard image in the screen. User will automatically have a feeling of typing in the keyboard. Algorithm can be built to recognize hand movements over different keys in the image. Hardware accelerators may be used to reduce the impact on computing power. At the end, for non key operations, you can get your normal screen changed to touch screen.

Bank 'N' Shop - Money Manager driving your Shopping Cart

BankNShop can provide unique banking and shopping experience by combining the industry best practices in managing funds effectively and also in getting better deals.

Help the user in making the buying decision and there by realizing the value for the money. Online shopping can be driven by Money Manager Solutions for effective utilization of funds. Money Manager users can plan his or her buys and get the best deals for the same by building a composite applications that plugs in the features of Shopping application as well.

Your shopping plan can be captured with a rough estimate so that it can be accounted for better fund management. Intelligence can be built to bring up deals via alerts on items that you plan to buy. You will have to just choose the deal which fits your budget / future spendings.

Java program that does Permutation & Combination

Forms the unique target combinations, recursively, starting from source list that has all the positions.

import java.util.LinkedList;
import java.util.List;

import org.apache.commons.lang.SerializationUtils;

public class Combinations {
 
 private final static String characters = "abcd";
 
 private static int length = characters.length();
 
 public static void main(String[] args) {
  List source = new LinkedList();
  
  // form the source list that have all the possible positions
  for (int i = 0; i < length; i++) {
   source.add(i);
  }

  // create a target list for forming unique combinations
  List target = new LinkedList();

  combine(source, target);

 }
 
 public static void combine(List source, List target) {

  // break the recursion
  if (target.size() == length) {
   for (int i = 0; i < length; i++) {    
    System.out.print(characters.charAt(target.get(i)));    
   }
   System.out.println();
   return;
  }

  for (Integer position : source) {
   //form the target combination by selecting a position from the source
   List reducedSource = (List)SerializationUtils.clone((LinkedList)source);
   reducedSource.remove(position);
   List combinedTarget = (List)SerializationUtils.clone((LinkedList)target);
   combinedTarget.add(position);
   combine(reducedSource, combinedTarget);   
  }
 }
}