Regarding a star pattern

Question

I am trying to print below star pattern

*
***
*****
***
*

I am using below logic to print :

*
***
*****

Answer 1

You just have to write in reverse the loop, to start from the upperBound - 1. See the code bellow:

int numberOfLines = 3;
for (int i = 1; i <= numberOfLines; i++) {
    for (int j = 1; j < 2*i; j++){
        System.out.print("*");
    }
    System.out.println();
}
for (int i = numberOfLines - 1; i > 0; i--) {
    for (int j = 1; j < 2*i; j++){
        System.out.print("*");
    }
    System.out.println();
}