Question

对于作业，我应该完成一个表格，跟踪myNum和mySum的值，以及基于以下代码段的任何输出：

int myNum = 11;
int mySum = 0;

while (myNum >= 0) 
{
myNum--;
mySum += myNum * 5;
}

System.out.println ("myNum: " + myNum);
System.out.println ("mySum: " + mySum);

我对Java很新，我在理解这个细分市场会产生什么方面遇到了一些麻烦。任何人都可以帮忙澄清一下吗？

Answer 1

这是评论版：

int myNum = 11; // myNum is 11
int mySum = 0; // mySum is 0

while (myNum >= 0) // repeat the next block (between {}) while myNum is positive or 0
{
    myNum--; // decrease myNum by 1
    mySum += myNum * 5; // add 5 times myNum to mySum
}

System.out.println ("myNum: " + myNum); // output "myNum: " followed by myNum value
System.out.println ("mySum: " + mySum); // same as above by with mySum

Answer 2

myNum的值为：11,10,9,8,7,6,5,4,3,2,1,0,-1，mySum的值为：0,50,95,135,170,200,225,245,260,270,275,275,270。所以，输出将是：

    myNum: -1
    mySum: 270

Java变量跟踪表单

2 个答案: