Java Ice Breakers

How to find length of double value using Double class

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by

anagendrakumar2020
in ,

This is the second solution to find the length of a given double value. This approach uses Double wrapper class to convert to string before using the length method.

import java.util.Scanner;

public class LengthOfDoubleValue {

	public static void main(String[] args) {
		// TODO Auto-generated method stub

		@SuppressWarnings("resource")
		Scanner inpDouble= new Scanner(System.in);
		
		//Input an Integer
		System.out.println("Enter Double number=");
		double doubleNum=inpDouble.nextDouble();
		System.out.println("The Double number is="+doubleNum);
				
		// Use the Wrapper class of an decimal i.e. Double to find out the length
		String[] dblToStr=Double.toString(doubleNum).split("\\.");
		System.out.println("The Length of the given double number "+doubleNum+" before . is="+dblToStr[0].length());
		System.out.println("The Length of the given double number "+doubleNum+" after . is="+dblToStr[1].length());	
		}
}
Try it >>

Output:
 Enter Double number=
 3345821.309821
 The Double number is=3345821.309821
 The Length of the given double number 3345821.309821 before . is=7
 The Length of the given double number 3345821.309821 after . is=6

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