为什么把两个while循环写在一起就没有输出结果啊

public class WhileDemo {

public static void main(String[] args) {

// 求1-x的累加和

System.out.println("请输入您希望计算1到多少的累积和：");

Scanner sc = new Scanner(System.in);

int x = sc.nextInt();

int x2 = sc.nextInt();

int n = 1;

int n2 = 1;

int sum = 0;

int sum2 = 0;

while (n <= x) {

sum = sum + n;

n++;

}

    System.out.println("1-"+x+"的累加和是："+sum);

//求1-x的奇数累加和

while (n2 <= x2){

if (n2%2==0){

                n2++;

}else{

sum2 = sum2+n2;

n2++;

}

}

System.out.println("1-"+x2+"之间的奇数累加合为"+sum2);

}

}