For loop graphics

Im doing a project and i got only a 1/5 of the way there. i want to use (*) to create 5 basic shapes using 4 loops and arrays. The first shape the diamond i have completed. what i need is a rectangle, a square, a bulls eye (like a shooting target 4 circles) and a hypnoses spiral. <deleted by moderator>. just note im new to the forums. the diamond code i have looks like this

Code:

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class Diamond {
  public static void main(String[] args) {
    for (int i = 1; i < 10; i += 2) {
      for (int j = 0; j < 9 - i / 2; j++)
        System.out.print(" ");

      for (int j = 0; j < i; j++)
        System.out.print("*");

      System.out.print("\n");
    }

    for (int i = 7; i > 0; i -= 2) {
      for (int j = 0; j < 9 - i / 2; j++)
        System.out.print(" ");

      for (int j = 0; j < i; j++)
        System.out.print("*");

      System.out.print("\n");
    }
  }
}
/*
        *
        ***
      *****
      *******
    *********
      *******
      *****
        ***
        *
*/

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