{ public static void main(String[] args) { int i=8, j=2; while(j< --i) for(int k=0; k<4; k++) j++; System.out.print(j); } }
时间: 2023-12-11 15:02:11 浏览: 105
As an AI language model, I cannot run the code or access the actual output. However, I can explain what the code does.
The code initializes two integer variables, i and j, with the values 8 and 2 respectively.
Then it enters a while loop that continues until j is less than the pre-decremented value of i.
Inside the while loop, there is a for loop that runs 4 times, incrementing k by 1 each time. However, the loop body is empty, so nothing happens in the for loop.
After the for loop, j is incremented by 1. This process repeats until j is no longer less than the pre-decremented value of i.
Finally, the code prints the value of j.
Based on the code, the output should be 4.
相关问题
public class main { public static void main(String[] args) { int i; int sum=0; int b=1; for(i=1;i<=20;i++){ while(i!=0){ b*=i; i--; } sum+=b; } System.out.println(sum); } }代码有错吗
这段代码存在一个错误。在for循环中,i的值被改变,但是在while循环中也使用了i的值,导致程序出现了逻辑错误。正确的代码应该如下所示:
```
public class Main {
public static void main(String[] args) {
int i;
int sum = 0;
for (i = 1; i <= 20; i++) {
int b = 1; // 在每次循环开始前初始化b的值
while (i != 0) {
b *= i;
i--;
}
sum += b;
}
System.out.println(sum);
}
}
```
在每次循环开始前初始化b的值可以避免i的值被修改导致出现逻辑错误。
public class Test { public static void main (String[ ] args){ int sum=0; for (int i=1;i<10;i++){ do{ i++ if(i%2!=0 ) sum+=i; }while (i<6); } System.out.println (sum) ; } }
这段代码存在一些语法错误,我先给你修改一下:
```java
public class Test {
public static void main(String[] args) {
int sum = 0;
for (int i = 1; i < 10; i++) {
do {
i++;
if (i % 2 != 0)
sum += i;
} while (i < 6);
}
System.out.println(sum);
}
}
```
这段代码的功能是计算 1 到 9 中所有奇数且大于 6 的数的和。具体实现方式是,使用 for 循环遍历 1 到 9 中的每一个数字,然后使用 do-while 循环判断是否符合条件,如果符合条件就将该数字加入到 sum 变量中。需要注意的是,由于 for 循环已经将 i 自增了一次,所以在 do-while 循环中要将 i 再自增一次才符合要求。最后输出 sum 的值即可。
阅读全文
相关推荐
![pdf](https://img-home.csdnimg.cn/images/20241231044930.png)
![pdf](https://img-home.csdnimg.cn/images/20241231044930.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![docx](https://img-home.csdnimg.cn/images/20241231044901.png)
![zip](https://img-home.csdnimg.cn/images/20241231045053.png)
![zip](https://img-home.csdnimg.cn/images/20241231045053.png)
![zip](https://img-home.csdnimg.cn/images/20241231045053.png)
![md](https://img-home.csdnimg.cn/images/20250102104920.png)
![zip](https://img-home.csdnimg.cn/images/20241231045053.png)
![txt](https://img-home.csdnimg.cn/images/20241231045021.png)
![pdf](https://img-home.csdnimg.cn/images/20241231044930.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)