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import java.net.*;
import java.io.*;
import java.util.Scanner;

public class Rand
{
    public static void main(String[] args) throws Exception
    {
        System.out.printf("Integer Generator\n(c) First Name Last Name, 2014 All Rights Reserved\nNumbers Supplied by https://www.random.org/, This Connection is SSL protected by COMODO.\nGenerated numbers will be stored in output.txt\nWrite the quantities:   \n");
        Scanner in=new Scanner(System.in);
        int p=in.nextInt(), m, n;
        while(true)
        {
            System.out.println("Write the Maximum number:   ");
            m=in.nextInt();
            System.out.println("Write the Minimum number:   ");
            n=in.nextInt();
            if(n<m) break;
            System.out.println("Maximum is smaller than Minimum, Try again.");
        }
        PrintWriter writer=new PrintWriter("output.txt");
        String[] inputLine=new String[p];
        boolean b=false;
        int i=0;
        while(i<p)
        {
            b=false;
            HttpURLConnection c=(HttpURLConnection)new URL("https://www.random.org/integers/?num=1&min="+n+"&max="+m+"&col=1&base=10&format=plain&rnd=new").openConnection();
            c.setRequestProperty("Accept-Charset", "UTF-8");
            c.setDoInput(true);
            c.setDoOutput(false);
            c.connect();
            BufferedReader out=new BufferedReader(new InputStreamReader(c.getInputStream()));
            inputLine[i]=out.readLine();
            c.disconnect();
            for(int j=i-1; j>=0; j--)
            {
                if(i==0) break;
                if(inputLine[j]==inputLine[i])
                {
                    inputLine[i]=null;
                    b=true;
                    break;
                }
            }
            if(b) continue;
            writer.println(inputLine[i]);
            i++;
        }
        writer.close();
    }
}

I programmed this code as a mini beginner project(Forgive me if this has an easy solution, I'm a 7th grader, please don't give me deductions)

I made it to give a sequence of numbers randomly without the same numbers repeating.

ex) 1 3 5 6 4 2 if quantity is 6, maximum is 6, minimum is 1.

However, it comes out like this: 4 1 6 4 4 1

What's wrong with this? Please give me an explanation.

0 Answers0