Why am I getting different outputs in these two types of loops(the while loop is correct though)

Question

class forExample2 {
public static void main(String[] args) {

//for loop

int triangularNumber = 1;

/* for(int x = 1; x <= 10; x++){

System.out.println(triangularNumber);

triangularNumber = triangularNumber + x;
}*/

//while loop

int y = 1;

while(y <= 10){

System.out.println(triangularNumber);

y++;

triangularNumber = triangularNumber + y;
}

}
}

Answer 1

also using triangularNumber += x can save you some time :)

Answer 2

Im still new to java but this is what I found:
if you change int x = 1 to equals 2 instead itll output the traingular numbers. Since the incrementation only happens after the code has been executed you’ll kind of fall behind otherwise. Having int x = 2 will lead to you’re code only outputting 9 numbers but you can change that very easily.

Answer 3

This code outputs triangular numbers i.e 1,3,6,10, 15,21,28,36,45,55

The second loop (while loop) outputs it well.
The first loop(for loop) won't output correctly.

class forExample2 {
public static void main(String[] args) {

//for loop

int triangularNumber = 1;

for(int x = 1; x <= 10; x++){

System.out.println(triangularNumber);

triangularNumber = triangularNumber + x;

}
}
}

Answer 4

Alexander Crum thanks😁
let me try it out