这样随机生成一个随机两位数对不对？

Question

public class C31 {

public static void main(String[] args) {
int num1 = (int)(Math.random() * 10);
    int num2 = (int)(Math.random() * 10);
    if(num1 == num2) {
        return;
    }
    num2 = (int)(Math.random() * 10);
    int lottery = num1 * 10 + num2; 
    
    }

}

Answer 1

没毛病，生成的随机范围是1-9包含1/9