Thread: Random variant.

How can I insert that code in my program?

In my program I have this:

public void Turnnumber(){
scan2 = new Scanner(System.in);
System.out.println("Enter the desired number of turns");
game = scan2.nextInt();
scan2.nextLine();
er = new int [game];
turnswinners = new int [game];
}

And I want that the number of turns be random. How to do that?

My program:

package Dice;
 
import java.util.Random;
import java.util.Scanner;
 
public class Dice {
 
static int game;
 
String [] players;
 
int [] Wonthenumberofturns;
 
 
int esk;
 
int [] er;
 
int [] turnswinners;
 
private Scanner scan;
private Scanner scan2;
private Scanner scan3;
 
private int number;
 
private int number2;
 
 
public void Players(){
scan = new Scanner(System.in);
System.out.println("Insert how many players play in game:");
int game = scan.nextInt();
scan.nextLine();
players = new String [game];
Wonthenumberofturns = new int [game];
for(int i = 0; i < game; i++){
System.out.println("Insert player number" + Integer.toString(i+1));
players[i] = scan.nextLine();
Wonthenumberofturns[i] = 0;
}
//scan.close();
}
public void Turnnumber(){
int min = 0;
int max = 10;
game = (int) (Math.random() * (max+min));
System.out.println(game);
er = new int [game];
turnswinners = new int [game];
}
public void Go(int Gonumber){
int Biggest = 0;
int Record = 0;
scan3 = new Scanner(System.in);
for(int i = 0; i < game; i++){
System.out.println("Enter the number of players rolling the" + players[i]);
int Rezult = scan3.nextInt();
scan3.nextLine();
if (Rezult > Biggest){
Biggest = Rezult;
Record = i;
}
}
System.out.println("Turn win the player" + players[Record]);
turnswinners[Gonumber] = Record;
er[Gonumber] = Biggest;
Wonthenumberofturns[Record]++;
}
 
public void Winner(){
for(int i = 0; i < game; i++){
int winnernumber = turnswinners[i];
int taskai = er[i];
System.out.println("Turn" + Integer.toString(i+1) + "won" + players[winnernumber]);
System.out.println("collected" + Integer.toString(taskai) + "points");
}
int winners = 0;
int winner = 0;
for (int i = 0; i < game; i++) {
if (Wonthenumberofturns[i] > winners) {
winners =Wonthenumberofturns[i];
winner = i;
}
}
System.out.println("Game winner" + players[winner]);
}
public void zaid(){
Players();
Turnnumber();
for(int i = 0; i < game; i++){
Go(i);
}
Winner();
}
public int getNumber() {
	return number;
}
public void setNumber(int number) {
	this.number = number;
}
public int getNumber2() {
	return number2;
}
public void setNumber2(int number2) {
	this.number2 = number2;
}
public static void main(String[] args) {
 
Dice game = new Dice ();
game.zaid();
 
}
public static int getI() {
	return game;
}
}

When the program print me random number like 2 in this:

public void Turnnumber(){
int min = 0;
int max = 10;
game = (int) (Math.random() * (max+min));
System.out.println(game);
er = new int [game];
turnswinners = new int [game];
}

My program end good.
But when random number is like 9 program give me the error:

Insert how many players play in game:
2
Insert player number1
Lukas
Insert player number2
Matty
9
Enter the number of players rolling theLukas
2
Enter the number of players rolling theMatty
2
Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 2
	at Dice.Dice.Go(Dice.java:57)
	at Dice.Dice.zaid(Dice.java:92)
	at Dice.Dice.main(Dice.java:111)

And how can I correct it?

Okey I change. Thanks.

--- Update ---

And can you help me in my post?:
http://www.javaprogrammingforums.com...ats-wrong.html

My post: http://www.javaprogrammingforums.com...ats-wrong.html
When I starting program everything is okey, but when I inserting the books the program showed me the last book. I want that the program show all books where I insert.

import java.util.Scanner;
 
public class Authors2 {
 
	int authors03;
	String authors;
	String books2;
	Scanner scan;
	public void Authors(){
		scan = new Scanner(System.in);
 
		System.out.println("Please write the author: ");
		authors = scan.nextLine();		
		System.out.println("Please write how much author books you want to write: " + authors);
		authors03 = scan.nextInt();
		scan.nextLine();
 
		for(int i = 0; i < authors03; i++){
		System.out.println("Please write author books: " + authors);
		books2 = scan.next();
	}
	}
	public void result(){
		System.out.println("You have writed the author: " + authors);
		System.out.println("You have entered these author books: " + books2); //Program print me the last book. I want that the program print me all books.
	}
	public void Kiak(){
		Authors();
		result();
		}
	}

He has main() method.

public class Main {
 
	/**
	 * @param args
	 */
	public static void main(String[] args) {
		Authors2 book = new Authors2 ();
		book.Kiak();
 
	}
}

My question is: When I starting program everything is okey, but when I inserting the books the program showed me the last book. I want that the program show all books where I insert.

Please write the author: 
Lukas
Please write how much author books you want to write: Lukas
2
Please write author books: Lukas
Test1
Please write author books: Lukas
Test2
You have writed the author: Lukas
You have entered these author books: Test2

I want that the program print me:
You have entered these author books: Test1, Test2

or:
You have entered these author books: Test1
You have entered these author books: Test2

public class Authors2 {
 
	int authors03;
	String authors;
	int books2;
	Scanner scan;
	int[] anArray;
	private String books22;
	public void Authors(){
		scan = new Scanner(System.in);
 
		System.out.println("Please write the author: ");
		authors = scan.nextLine();		
		System.out.println("Please write how much author books you want to write: " + authors);
		authors03 = scan.nextInt();
		scan.nextLine();
 
		for(int i = 0; i < authors03; i++){
		System.out.println("Please write author books: " + authors);
		setBooks22(scan.next());
		anArray = new int[1];
	}
	}
	public void result(){
		anArray[0] = books2;
		System.out.println("You have writed the author: " + authors);
		System.out.println("You have entered these author books: " + anArray); //Program print me the last book. I want that the program print me all books.
	}

My result is:
You have entered these author books: [I@b988a6

for(int i = 0; i < authors03; i++){
		System.out.println("Please write author books: " + authors);
		setBooks(scan.next());
		anArray = new String[1];
	}
	}
	public void result(){
		anArray[0] = books;
		System.out.println("You have writed the author: " + authors);
		System.out.println("You have entered these author books: " + anArray); //Program print me the last book. I want that the program print me all books.
	}

You have entered these author books: [Ljava.lang.String;@b988a6

public void Authors(){
		scan = new Scanner(System.in);
 
		System.out.println("Please write the author: ");
		authors = scan.nextLine();		
		System.out.println("Please write how much author books you want to write: " + authors);
		authors03 = scan.nextInt();
		scan.nextLine();
 
		for(int i = 0; i < authors03; i++){
		System.out.println("Please write author books: " + authors);
		setBooks(scan.next());
		anArray = new String[1];
	}
	}
	public void result(){
		anArray[0] = books;
		System.out.println("You have writed the author: " + authors);
		String[] setBooks = anArray;
		System.out.println("You have entered these authors books "+ java.util.Arrays.toString(setBooks)); //Program print me the last book. I want that the program print me all books.
	}

Now there is no errors but the result is the last book. I did theArray(theIndex);
anArray[0] = books;