How to create an "X" pattern?

Question

I want to know how to create the following pattern using * and _ using nested loops.

*_______*
__*___* 
____*   
__*___* 
*_______*

I am currently trying to do this in Java, but an answer in C will do as well, I can extrapolate the answer. Here is a pic to better understand the pattern required.

I understand that I need to have some code to start with , but I cant manage to work out the logic.

Is there any algo/technique that anyone can guide me towards in order to be able to attempt this, some Karnaugh map like technique.

Answer 1

for(int i =0; i < 5; i++){
    for(int j = 0; j < 9; j++){
       if(j==2*i || 8-2*i == j)
          System.out.print("*");
       else if(8-2*i < j && j > 2*i)
           break;
       else
          System.out.print("_");
    }
  System.out.println();
}