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Alphablend · (This post was last modified: 02-16-2010 11:46 PM by Alphablend.)

The task was to make a program which requires user's input of length of the array. Elements of that array are strings which are randomly generated. The length of every string is a random value from range 0-20. The probability of getting the upper case letter is twice bigger than the lower case letter.

I did a similar example in Python:
[Python] Function for random String

Code:

import java.util.Random;

import cs1.*;

public class example{

    //Function which generates the length (up to 20) and the elemengs of string 

    static String randString(){

        String word="";

        Random rand=new Random();

        int length=rand.nextInt(20);

            for (int i=0;i<length;i++){

                int BS_letter=rand.nextInt(2);

                int n=rand.nextInt(25);

                char S_letter=(char)(97+n);

                char B_letter=(char)(65+n);

                if (BS_letter==0)

                    word+=S_letter;

                else

                    word+=B_letter;

        }

        return word;

    }

    //Regular function to print an array, which you can use in similar programs

     static void printArray(String[] a, int n){

         for (int i=0;i<n;i++)

         System.out.print(a[i]+"\t");

         System.out.println();

     }

    public static void main(String[]args){

        System.out.println("Enter length of the array: ");

        int n=Keyboard.readInt();

        String[] a=new String[n];

        for (int i=0;i<n;i++)

            a[i]=randString();

        printArray(a,n);

    }

}

This is what you get when you try out the program:

Code:

Enter length of the array: 

5

efmXncKvLYQcOHjDT   nePUEA  IAjX    NcR QrIXpI

example.rar (Size: 565 bytes / Downloads: 0)

***drdebcol*** · 02-16-2010, 11:47 PM

Very good task and interesting solution. It is good to see a task with probability !