问一个for循环的问题
Scanner console = new Scanner(System.in);
System.out.print("How many numbers do you have?");
int totalNumbers = console.nextInt();
double sum = 0.0;
for (int i = 1; i <= totalNumbers; i++); {
System.out.print(" #" + i + " ?");
double next = console.nextDouble();
sum += next;
}
Exception in thread "main" java.lang.Error: Unresolved compilation problem:
i cannot be resolved to a variable
程序报错，说黑体那行的i有问题，但是我怎么看都找不出问题啊？
[解决办法]
for (int i = 1; i <= totalNumbers; i++); 注意这个for循环后面的封号，这说明程序再这个封号前这个for循环就执行结束了，和后面的语句无关，简而言之就是这个封号造成了后面输出的i未定义的错误，把for后面的封号去掉就可以修复此错误
