Aatul Palandurkar

Archive for February 2016

Program to find Sum of Digits in Java

Posted on: February 23, 2016

Objectives :

• Write a program to compute sum of digits of a given number.
• Write a program to find sum of digits of a given number.
• Write a program to calculate sum of digits of a given number.
• Write a program to compute sum of digits of a given integer number.
• Write a program to compute sum of digits of a number entered via Command Line.
• Write a program to compute sum of digits of a given number. Take input from Command Line.
• Write a program to compute sum of digits of a given number. Take input using Scanner class.

Following is the Java Program to compute Sum of Digits of a given integer number;

Method 1 : Java Program to find Sum of Digits when number is entered from command line

```
class SumOfDigits
{
public static void main(String args[])
{
int n;
int a=0;
int sum=0;

//taking integer number from command line and parsing the same
n=Integer.parseInt(args[0]);

while(n!=0)
{
a=n%10;
n=n/10;
sum=sum+a;
}
System.out.println("Sum of digits: " + sum);
}
}

```

Steps to run above program via command line :

1. Compilation : C:\JavaPrograms>javac SumOfDigits.java
2. Interpretation : C:\JavaPrograms>java SumOfDigits 12345

Output : Sum of digits: 15

Method 2 : Java Program to find Sum of Digits if input is taken using Scanner class

```
import java.util.Scanner;

public class SumOfDigits {
public static void main(String args[]) {
Scanner in = new Scanner(System.in);
int n;
int a=0;
System.out.print("Enter a positive number: ");
n = in.nextInt();

if (n <= 0)
System.out.println("You have entered a negative number.");
else {
int sum = 0;

while (n != 0) {

a=n%10;
n=n/10;
sum=sum+a;
}
System.out.println("Sum of digits: " + sum);
}
}
}

```

Steps to run above program via command line :

1. Compilation : C:\JavaPrograms>javac SumOfDigits.java
2. Interpretation : C:\JavaPrograms>java SumOfDigits 12345

Output :

Trial 1 : With positive number

Enter a positive number: 12345

Sum of digits: 15

Trial 2 : With negative number

Enter a positive number: -12345

You have entered a negative number.

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Posted on: February 19, 2016

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0120-4200470, 6619680, 4001000

What is the next Freedom 251 Booking Timing and Launch Date

Mobile launched on 18 Jan 2016 but due to heavy traffic on site it postponed to tomorrow on 19 Feb 2016. Hopefully everything will be alright and again mobile will be ready for registration or buying.

Sale starts on 18th Feb 2016

New booking date – 19th Feb 2016

Closing on – 21st Feb 2016 at 8 PM

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Paytm Freedom 251 Cellphone – Not Available

Amazon Freedom 251– Available Soon

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Source : Promo Coders