Write a java program to count the number of digits before and after the decimal point. For a given double number with at least one decimal value, Write a program to compute the number of digits before and after the decimal point in the following format – noOfDigitsBeforeDecimal:noOfDigitsAfterDecimal.

Note: Ignore zeroes at the end of the decimal (Except if zero is the only digit after decimal. Refer Example 2 and 3)

Include a class UserMainCode with a static method findNoDigits which accepts the decimal value. The return type is string.

Create a Class Main which would be used to accept the string and call the static method present in UserMainCode.

Input and Output Format:

Input consists of a double.
The output consists of a string.
Refer sample output for formatting specifications.

Sample Input 1:
843.21

Sample Output 1:
3:2

Sample Input 2:
20.130

Sample Output 2:
2:2

Sample Input 3:
20.130

Sample Output 3:
2:2

java program to count the number of digits before and after the decimal point

import java.util.*;
public class Main {
public static void main(String[] args) {
double d=845.69;
System.out.println(noOfDigits(d));
}
public static String noOfDigits(double d) {
int n1=0,n2=0;
String s=String.valueOf(d);
StringTokenizer t=new StringTokenizer(s,".");
String s1=t.nextToken();
String s2=t.nextToken();
n1=s1.length();
n2=s2.length();
if(s1.charAt(0)=='0')
n1=s1.length()-1;
if(n2!=1)
if(s2.charAt(s2.length()-1)=='0')
n2=s2.length()-1;
String s3=String.valueOf(n1)+":"+String.valueOf(n2);
return s3;
}
}