求任意数字的位数是几个

Question

int count=0;
Scanner scanner=new Scanner(System.in);
System.out.println("请输入任意一个整数");
long y = scanner.nextInt();
for(;y!=0;y/=10){
//System.out.println(y%10);
count++;
}
System.out.println(count);

Answer 1

int num = 666;String str = String.valueOf(num);System.out.println(str.length());for(char c : str.toCharArray()){System.out.println(c);}