How to use the random generator in java

Question

hey peeps, this is the class in which i am trying to implement the random generator in;
public class Matchlist
    private studentdetails sd = new studentdetails();
    /** matchList StringBuilder stores the match list in progress */
    private StringBuilder matchList = new StringBuilder();
    private int loop = 0;
    private int matches = 0;
    public Matchlist()
        sd.createstudentdetails();
    /** Method to create the actual match list, returns the list as a string */
    public String CreateMatch()
        int g;
        int y;
            for (g = 0; g < 4; g++)//g = game
                for (y = 17; y > -1; y--)//y = green house
                    /** Check to see if the game is empty */
                    if (sd.getgh(y).getGame(g).equalsIgnoreCase(""))
                        for (int x = 0; x < 18; x++) //x = yellow house
                            if (sd.getyh(x).getGame(g).equalsIgnoreCase(""))
                                if (sd.getgh(y).getC_lass() != sd.getyh(x).getC_lass())
                                    /** Check to see if the person has played the other person */
                                    if (sd.getgh(y).checkPlayed(sd.getyh(x).getName()) == false)
                                        /** Set the game to the name of the opponent played */
                                        sd.getyh(x).changeGame(g, sd.getgh(y).getName());
                                        sd.getgh(y).changeGame(g, sd.getyh(x).getName());
                                        /** Build the match list step by step using append with \n at the end to create a new line */
                                        matchList.append(sd.getyh(x).getName() + " vs " + sd.getgh(y).getName() + "\n");
                                        matches++;
                                        break;
            /** Convert the stringbuilder into an actual string, then return it */
            String completeMatchList = matchList.toString();
            System.out.println(matches);
            for (int i = 0; i <18; i++)
                sd.getyh(i).getEmptyMatches();
                sd.getgh(i).getEmptyMatches();
            return completeMatchList;
    }what i dont understand is how to implement it to pick my matches at random using the http://java.sun.com/j2se/1.4.2/docs/api/java/util/Random.html java tutorials from here
regards

Answer 1

How to use Random ?
First you open API then you read it, then you use it.
You mention you try to use it but i just see a horrible nested for for for if if if loop.
Restructure code and question and maybe it makes more sense.
Edited by: pgeuens on 10-mrt-2008 22:58