Doing a Lottery program (or trying 2) [Need help!!]

[ImortalSorrow]

Hey, I'm quite new in programing so need some help with this lottery program I'm making. What I'm trying to do is very simple, simulate a lottery but my effords are in vain since when I'm compiling it, it says that there are 100 errors ... -.- The code is right here:

class lottery {

public static void main (Strings [] args){

int ball1;
int ball2;
int ball3;
int ball4;
int ball5;
int star1;
int star2;

ball1 <= 50 && ball1 > 0;
ball2 <= 50 && ball2 > 0;
ball3 <= 50 && ball3 > 0;
ball4 <= 50 && ball4 > 0;
ball5 <= 50 && ball5 > 0;
star1 <= 50 && star1 > 0;
star2 <= 50 && star2 > 0;

System.out.println("The Lottery has Begun!!");
System.out.println("And The Numbers are:");
System.out.println(ball1 + "for the number one");
System.out.println(ball2 + "for the number two");
System.out.println(ball3 + "for the number three");
System.out.println(ball4 + "for the number four");
System.out.println(ball5 + "for the number five");
System.out.println("Now The Stars Are:");
System.out.println(star1 + "for the star number one");
System.out.println(star2 + "for the star number two");
}
}


Hope you can answer and help me with this!
Thanks a lot, ImortalSorrow

[BigDaddyLH]

This lines is not a Java statement:

ball1 <= 50 && ball1 > 0;

What were you trying to do? What where you trying to express?

[ImortalSorrow]

I'm trying to simulate a lottery, like some random number between 1 and 50 for five balls and between 1 and 9 for other two. just like euromilions.

[Laharl]

Those statements involving ranges for the ball's value have no meaning. To generate random numbers, use the Math.random() function (or the Random class). Math.random() returns a decimal between 0 and 1, so then you multiply by the range you want and cast to int.

int a = (int)(Math.random()*r) //Add 1 if you want to avoid getting 0
 

[BigDaddyLH]

Those statements involving ranges for the ball's value have no meaning. To generate random numbers, use the Math.random() function (or the Random class). Math.random() returns a decimal between 0 and 1, so then you multiply by the range you want and cast to int.

int a = (int)(Math.random()*r) //Add 1 if you want to avoid getting 0
 

Class java.util.Random is a little easier and clearer to use -- less arithmetic: http://java.sun.com/javase/6/docs/ap...il/Random.html

[ImortalSorrow]

ohh ok thanks, so in this case i do:

 ball1 = (Math.random()1*50) 

?

srry about all these questions =P

[BigDaddyLH]

ohh ok thanks, so in this case i do:

 ball1 = (Math.random()1*50) 

?

srry about all these questions =P

What I suggest you do is write a tiny program just to learn how to generate random numbers. When you've learned how, apply that knowledge to your assignment. That's a strategy you should apply widely.

[ImortalSorrow]

yes i guess you'r right

thank you very much for your time and help!

[BigDaddyLH]

Good luck on your program!!