n-th padovan string p(n), JAVA Programming

write a program that count the number of occurences of string in the n-th padovan string p(n)

 

program in java

// aakash , suraj , prem sasi kumar kamaraj college
program 1 :

package test.padovanstring;

public class PadovanString {
    public int stringOccurrences(int n, String str){
   
    if(n >= 40)
    return -1;
    if(str.replaceAll("X|Y|Z","").length()>0)
    return -1;
    String res=pad(n);
    return(res.length() - res.replaceAll(str,"").length())/(str.length());
    }
public String pad(int n){
    if(n == 0) return "X";
    if(n == 1) return "Y";
    if(n == 2) return "Z";
    else return pad(n-2) + pad(n-3);
   
}
    public static void main(String []args)
    {
        PadovanString p = new PadovanString();
        System.out.println(p.stringOccurrences(21,"YZ"));
    }
}

 

 

 

Program set 2 :

import java.util.Scanner;

import java.util.ArrayList;

 

public class PadovanSeries

{

    public static void main(String[] arg)

    {

        Scanner read = new Scanner(System.in);

        System.out.println("Enter starting no. : ");

        int start = read.nextInt();

        System.out.println("Enter ending no. : ");

        int end = read.nextInt();

        int[] ans = getSeries(start, end);

        System.out.println("Padovan series : ");

        for (int a : ans)

            System.out.print(a + " ");

    }

 

    public static int[] getSeries(int s, int e)

    {

        ArrayList list = new ArrayList();

        int i, j = 0;

        for (i = s; i <= e; i++, j++)

            list.add(getPadovan(i));

        int[] ans = new int[j];

        for (i = 0; i < j; i++)

            ans[i] = list.get(i);

        return ans;

    }

 

    public static int getPadovan(int p)

    {

        if (p == 0 || p == 1 || p == 2)

            return 1;

        return (getPadovan(p - 2) + getPadovan(p - 3));

    }

}

 

Padova

Posted Date: 9/3/2012 1:18:56 AM | Location : United States







Related Discussions:- n-th padovan string p(n), Assignment Help, Ask Question on n-th padovan string p(n), Get Answer, Expert's Help, n-th padovan string p(n) Discussions

Write discussion on n-th padovan string p(n)
Your posts are moderated
Related Questions
Make a JavaScript jQuery script to fill variables from a remote JSON file I'm in requirement of someone to write and rewrite some JavaScript code that connects to a remote rest

Differentiation between an Applet and an Application ?

Using this module we can keep up the database code clean and easy, and prevent problems that result from a failure to close database resources. A new layer of meaningful exceptions

Java output and input is described in terms of an abstract concept named a " stream ", which is a sequence of data. There are 2 types of streams. 1.      Byte streams (8 bit

Iterate through list of Fish. For each fish that isAlive, do the following: * * 1. If this fishIsSurroundedByRocks, DO NOTHING, and move on to the next fish. * (This f

Having one instance overall the application.eg.: Loggers

EJB elements operate inside a container environment and rely heavily on the container to give security. The four key services needed for the security are: 1. Identification :

How do I write a java program that enters a six digit number and takes the sum of the six digits?

Integration: Neo4J, OpenGeo, Ikanow Project Description: I have an ongoing project to loosely integrate a variety of existing Open Source products: OpenGeo (geospatial server

A process is an execution of a code but a thread is a single execution sequence within the process. A process may contain multiple threads. A thread is sometimes named a lightweigh