How to join the output of 2 nested loops next to each other?

Question

So I'm currently working on a personal project and I made a program that prints out star patterns. On one of the star patterns I want this output:

Figure

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

So I made one method print out this:

Figure 1

for (int i = 1; i <= n; i++) {
    for (int j = 1; j <= i; j++) {
        System.out.print("*" + " ");
    }
    System.out.println("");
}

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

And another method print out this:

Figure 2

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

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

My question: How can I put the first method stars next to the other method stars?

This is what I got so far:

public static void printStarsVictory(int n) {
    for (int i = 1; i <= n; i++) {
        for (int j = 1; j <= i; j++) {
            System.out.print("*" + " ");
        }
        System.out.println("");
    }
    for (int i = 0; i < n; i++) {
        for (int j = 2 * (n - i); j >= 0; j--) {
            System.out.print(" ");
        }
        for (int j = 0; j <= i; j++) {
            System.out.print("* ");
        }
        System.out.println();
    }
}

This is what is printing so far:

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

Any idea how to solve this?

Answer 1

I think you are on the right track you just need to combine your two programs into the inner for loop:

private static void printStarsVictory(int n) {
    for (int i = 1; i <= n; i++) {
        for (int j = 1; j < n * 2; j++) {
            if (j <= i || j >= (n * 2 - i)) {
                System.out.print("*");
            } else {
                System.out.print(" ");
            }
        }
        System.out.println();
    }
}

Example Usage printStarsVictory(5):

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

Example Usage printStarsVictory(12):

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