RandomTest

package k20231130;

 

import java.util.Random;

 

public class RandomTest {

 

public static void main(String[] args) {

 

// Math.random() : 0이상이고 1미만인 무작위 수(난수)를 발생시킨다.

System.out.println((int) (Math.random() * 45) + 1);

System.out.println((int) (Math.random() * 45) + 1);

System.out.println((int) (Math.random() * 45) + 1);

System.out.println((int) (Math.random() * 45) + 1);

System.out.println((int) (Math.random() * 45) + 1);

System.out.println((int) (Math.random() * 45) + 1);

 

// Random 클래스

Random random = new Random();

System.out.println(random.nextDouble());

System.out.println(random.nextInt(45) + 1);

System.out.println(random.nextInt(45) + 1);

System.out.println(random.nextInt(45) + 1);

System.out.println(random.nextInt(45) + 1);

System.out.println(random.nextInt(45) + 1);

System.out.println(random.nextInt(45) + 1);

 

 

 

 

 

 

 

 

 

 

}

 

 

}