Java的switch循环

①while循环的实现

③不要用double类型等于一个值判断

public class doublesixunhuan {
public static void main(String[] args) {
double a = 1;
int i = 1;
while(a !=0&&i<=10)
{
a -=0.1;
i++;
System.out.println(a);
}
}
}