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Sunny Number in Java
A sunny number is a number that is equal to the sum of the squares of its digits. For example, the number 19 is a sunny number because 1 * 1 + 9 * 9 = 82, and 8 + 2 = 10.
Here's a Java program that checks if a number is a sunny number:
To use this program, you can compile and run it, and it will print whether the number 19 is a sunny number. You can modify the value of n in the main method to check if other numbers are sunny numbers.
I hope this helps! Let me know if you have any questions.
Here's a Java program that checks if a number is a sunny number:
class SunnyNumber {
public boolean isSunny(int n) {
int sum = 0;
while (n > 0) {
int digit = n % 10;
sum += digit * digit;
n /= 10;
}
return sum == n;
}
}
public class Main {
public static void main(String[] args) {
SunnyNumber sn=new SunnyNumber();
int n = 19;
System.out.println(n + " is" + (sn.isSunny(n) ? "" : " not") + " a sunny number.");
}
}
This program defines a method isSunny that takes an integer n as input and returns true if n is a sunny number, and false otherwise.
To use this program, you can compile and run it, and it will print whether the number 19 is a sunny number. You can modify the value of n in the main method to check if other numbers are sunny numbers.
I hope this helps! Let me know if you have any questions.
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