CODEWITHSUNDEEP
java
민동현
민동현

Reputation: 13

How can I get .length in Type input

public static void main(String[] args) {
    Scanner s = new Scanner(System.in); 
    int num = s.nextInt(); 
    int a = num.length; //This part
    System.out.println(a);
}

If I enter 4321, I want to get length of entered length. I already try to input Integer variable "a" but it did't right. T.T

(Example: length : 4) when I use int a = num.length;, it did't get num's length as well as Strings When I want get "Hello".length();

It seem like did't exist. I want to get length but I don't know how.

Is there other way to get .length?

Upvotes: 1

Views: 109

Answers (4)

Priyantha
Priyantha

Reputation: 5083

Try with this 

public static void main(String[] args) 
{
   Scanner s = new Scanner(System.in);
   int num = s.nextInt();
   int length = String.valueOf(num).length();
   System.out.println(length);}

if you want to get lenth of string then use bellow code

Scanner s = new Scanner(System.in);
String a = number.nextLine();
System.out.println(a.length());

Upvotes: 1

kamehl23
kamehl23

Reputation: 522

I would recommend to do it this way;

int length =  String.valueOf(num).length();

or

int length = Integer.toString(num).length();

The obove mentioned solution with the + Operator works aswell but is considered to be rather dirty;

Upvotes: 1

Youcef LAIDANI
Youcef LAIDANI

Reputation: 59960

If you cast your int to String you then you can get its length for example :

int a = num.length;
String s = a + "";
int lng = s.length();

Upvotes: 1

Eran
Eran

Reputation: 393781

If you read the input as a String, you can obtain its length :

String num = s.next();
int a = num.length();

Upvotes: 0

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