padovan string, Computer Engineering

how to write this program,what are the declaration and function are needed in java

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 2:14:23 AM | Location : United States







Related Discussions:- padovan string, Assignment Help, Ask Question on padovan string, Get Answer, Expert's Help, padovan string Discussions

Write discussion on padovan string
Your posts are moderated
Related Questions
converting 10 ASCII characters to excess three using mplab ide

MIPS - computer architecture: The MIPS ISA, so far 3 instruction formats Fixed 32-bit instruction 3-operand, load-store architecture 32 general-purpose register

What is Instruction Cycle A program residing in the memory unit of the computer having of a sequence of instructions.  The program is implemented in the computer by going throu

Explain the High Level Language? The programming language such as FORTRAN, C, or Pascal that enables a programmer to write programs those are more or less independent of a parti

Q. Explain about Hexadecimal Numbers system? Hexadecimal system has 16 digits that are represented as 0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F. A number (F2) H is equivalent to

What is the transport protocol you use to call a Web service SOAP? Http is preferred for Soap whereas tcp for binary i.e. HTTP is used in web services and tcp works well in rem

Q. What is the Concept of Lock? Locks are used for protected access of data in a shared variable system.  There are numerous kinds of locks:  1)  Binary Locks: These locks a

Make ensure that "Use dynamic keyboard shortcuts" option in "Interface" tab of Preferences dialog is enabled, then go to the menu selection you are interested in. Keeping it select

Q. Advantages and Disadvantage of Message Passage Programming? Advantages of Message Passage Programming     Portable It is less error prone Offers excellent

Q. What is Capacitor-Based Keyboards? These keyboards are based on the idea of Capacitance. A simple capacitor comprises a pair of conductive plates having opposite charges and