java classes and methods simple logic with comments
import java.lang.Math;
import java.util.Scanner;
public class NumberShapes {
public static void main(String[] args) {
class Number {
int number;
public boolean isTriangular() {
int x = 1;
int triangularNumber = 1;
while (triangularNumber < number) { // while number is greater than the triangularNumber keep going.
// number >
// trianguarNumber
x++;
triangularNumber = triangularNumber + x; // triangularNumber += x;
// this helps during testing to see how the counter works as we increment
System.out.println(triangularNumber);
}
// after the while loop runs we check what we have left and compare
if (triangularNumber == number) {
return true;
} else {
return false;
}
} // end - isTriangular()
} // end - Number class
Number myNumber = new Number();
myNumber.number = 21;
System.out.println(myNumber.isTriangular());
}
}