Dota 2 RNG Simulator v0.3

import java.util.Random;
import java.util.Scanner;

public class PRD {
    public static int rngCounter()
    {
        int a;

        Random rand = new Random();
        a = rand.nextInt(99);
        return a;
    }

    public static int chance(){
        int chance = 0;
        Scanner sc = new Scanner(System.in);
        System.out.println("====================================");
        System.out.println("Welcome to Dota 2 RNG Simulator v0.3");
        System.out.println("====================================");
        System.out.println();
        System.out.println("Available skills: ");
        System.out.println("-----------------------------------------------------------------");
        System.out.println("1. Axe - Counter Helix (20%)");
        System.out.println("2. Chaos Knight - Chaos Strike (10%)");
        System.out.println("3. Lycan - Shapeshift Critical (30%)");
        System.out.println("4. Sniper - Headshot (40%)");
        System.out.println("5. Wraith King - Mortal Strike (15%)");
        System.out.println("6. Phantom Assassin - Coup de Grace (15%)");
        System.out.println("7. Troll Warlord - Berserseker's Rage Bash (10%)");
        System.out.println("-----------------------------------------------------------------");
        System.out.println();
        System.out.print("Pick a skill number: ");
        int skill = sc.nextInt();
        if (skill == 1){
            chance = 20;
        } else if (skill == 2 || skill == 7){
            chance = 10;
        } else if (skill == 3){
            chance = 30;
        } else if (skill == 4){
            chance = 40;
        } else if (skill == 5 || skill == 6){
            chance = 15;
        }
        return chance;
    }

    public static void PRD()
    {
        Scanner in = new Scanner(System.in);
        int rngPlease = chance();
        String rngg;
        int[] noprocArray;
        noprocArray = new int[100];

        Integer p;
        int tryCounter = 0;

        boolean randomLagi = true;
        boolean seratus = true;

        while(tryCounter != 100)
        {
            p = rngCounter();
            if(p != null)
            {
                while(randomLagi)
                {
                    p = rngCounter();
                    for(int i = 0; i < noprocArray.length; i++)
                    {
                        if(tryCounter == 0)
                        {
                            break;
                        }
                        else if(p == noprocArray[i])
                        {
                            randomLagi = true;
                            break;
                        }
                        else
                        {
                            noprocArray[i] = p;
                            randomLagi = false;
                        }
                    }
                    break;
                }
                if(p < rngPlease)
                {
                    System.out.printf("Angka Random: %d\n", p);
                    System.out.println("proc");
                    noprocArray = new int[100];
                    //tryCounter++; siapa tau
                    System.out.println("RNGG!");
                    System.exit(0);
                }
                else
                {
                    System.out.printf("Angka Random: %d\n", p);
                    System.out.println("noproc");
                    tryCounter++;
                    System.out.println("Scrubz, press Enter key to try again...");
                    rngg = in.nextLine();
                }
            }
        }
    }

    public static void main(String[] args){
        PRD();
    }
}