Sum of digits in an integer..(JAVA)
Sum of digits in an integer using recursion: Write a recursive method that computes the sum of the integer. Use the following method header: Public static int sum Digits(long n) Write a test program that prompt the user to enter an integer and displays its sum. Your program need to include the try and catch block to handle bad input and request use to If the input is appropriate, your display should be similar to the following: If your input is other than an integer, your display should be similar to the following:
Solution
SumofDigitsRecursive.java
import java.util.Scanner;
public class SumofDigitsRecursive {//public class
static int sum = 0;//static variable
public static void main(String a[]) {
Scanner sc = new Scanner(System.in);//scanner class for keyboard inputting
System.out.println(\"please enter the number\");
try{//ecception handling
int number = sc.nextInt();//keyboard inputting
System.out.println(\"Sum is: \" + SumofDigitsRecursive.SumDigits(number));//calling static method
}
catch(Exception e)
{
System.out.println(\"you have entered bad input please try again exception \"+e);
}
}
public static int SumDigits(long number) {
if (number == 0) {
return sum;
} else {
sum += (number % 10);
SumDigits(number / 10);
}
return sum;
}
}
output
please enter the number
94506
Sum is: 24
please enter the number
sssfsfsf
you have entered bad input please try again exception java.util.InputMismatchException
.
Sum of digits in an integer--(JAVA) Sum of digits in an integer using.docx
1. Sum of digits in an integer..(JAVA)
Sum of digits in an integer using recursion: Write a recursive method that computes the sum of
the integer. Use the following method header: Public static int sum Digits(long n) Write a test
program that prompt the user to enter an integer and displays its sum. Your program need to
include the try and catch block to handle bad input and request use to If the input is appropriate,
your display should be similar to the following: If your input is other than an integer, your
display should be similar to the following:
Solution
SumofDigitsRecursive.java
import java.util.Scanner;
public class SumofDigitsRecursive {//public class
static int sum = 0;//static variable
public static void main(String a[]) {
Scanner sc = new Scanner(System.in);//scanner class for keyboard inputting
System.out.println("please enter the number");
try{//ecception handling
int number = sc.nextInt();//keyboard inputting
System.out.println("Sum is: " + SumofDigitsRecursive.SumDigits(number));//calling static
method
}
catch(Exception e)
{
System.out.println("you have entered bad input please try again exception "+e);
}
}
2. public static int SumDigits(long number) {
if (number == 0) {
return sum;
} else {
sum += (number % 10);
SumDigits(number / 10);
}
return sum;
}
}
output
please enter the number
94506
Sum is: 24
please enter the number
sssfsfsf
you have entered bad input please try again exception java.util.InputMismatchException
![Sum of digits in an integer..(JAVA)
Sum of digits in an integer using recursion: Write a recursive method that computes the sum of
the integer. Use the following method header: Public static int sum Digits(long n) Write a test
program that prompt the user to enter an integer and displays its sum. Your program need to
include the try and catch block to handle bad input and request use to If the input is appropriate,
your display should be similar to the following: If your input is other than an integer, your
display should be similar to the following:
Solution
SumofDigitsRecursive.java
import java.util.Scanner;
public class SumofDigitsRecursive {//public class
static int sum = 0;//static variable
public static void main(String a[]) {
Scanner sc = new Scanner(System.in);//scanner class for keyboard inputting
System.out.println("please enter the number");
try{//ecception handling
int number = sc.nextInt();//keyboard inputting
System.out.println("Sum is: " + SumofDigitsRecursive.SumDigits(number));//calling static
method
}
catch(Exception e)
{
System.out.println("you have entered bad input please try again exception "+e);
}
}](https://image.slidesharecdn.com/sumofdigitsinaninteger-javasumofdigitsinanintegerusing-230202043543-6eee9c2a/85/Sum-of-digits-in-an-integer-JAVA-Sum-of-digits-in-an-integer-using-docx-1-320.jpg)
