Question

Write a program in Java to input a number and check whether it is a Lead number or not.
A number is said to be a Lead number if the sum of even digits is equal to the sum of odd
digits of the number. For example: 6374 (6 + 4 = 3 + 7).​

Answer 1

import java.util.Scanner;

public class LeadNumber {

static boolean isLead(int number) {

int oddSum = 0, evenSum = 0;

for (int i = number; i != 0; i /= 10) {

int currentDigit = i % 10;

if (currentDigit % 2 = = 0)

evenSum += currentDigit;

else oddSum += currentDigit;

}

return evenSum = = oddSum;

}

public static void main(String[ ] args) {

System.out.print("Enter a number - ");

int number = new Scanner(System.in).nextInt( );

System.out.printf("It’s%sa Lead number", isLead(number) ? " " : " not ");

}

}

Answer 2

Question:-

Write a program to input a number and check whether it is a Lead number or not. A number is said to be a lead number if the sum of the even digits is equal to the sum of the odd digit.

Code:-

import java.util.*;

class Lead

{

public static void main(String args[])

{

Scanner sc = new Scanner(System.in);

System.out.print("Enter a number: ");

int n=sc.nextInt();

int a=0;

while(n!=0)

{

int d=n%10;

if(d%2==0)

a+=d;

else

a-=d;

n/=10;

}

if(a==0)

System.out.println("Given number is a lead number.");

else

System.out.println("Given number is not a lead number.");

}

}