一个家庭两个孩子，已知一个是女孩，另一个是女孩的概率是？Java

Posted 2022-04-10 masteryan576356467

下学期学java了，先拿C++程序改编一下练练手

package helloworld;
import java.util.Random;
public class hello 
        public static void main(String[] args) 
            for(int i = 0; i < n; ++i)
                Random x1 = new Random();
                Random x2 = new Random();
                int r1 = x1.nextInt(2);
                int r2 = x2.nextInt(2);
                if(r1 == girl && r2 == girl) g2++;
                if(r1 == girl || r2 == girl) g1++;
            
            System.out.println(g2 * 1.0 / g1);
         
        static int girl = 0, boy = 1;
        static int g1 = 0;
        static int g2 = 0;
        static int n = 10000;