Java Random()関数の使い方
413 ワード
import java.util.Random;
public class Graphics {
public static void main(String[] args) {
Random r = new Random();//( ) r,
int b= r.nextInt(10); // r nextInt, 0~10 , b
System.out.println(b);// b
int a = (int) (Math.random()*10); //( ) Math.random(), [0,1) , 10, [0,10), , a
System.out.println(a); // a
}
}