/**
 * Created with IntelliJ IDEA.
 * User: Bobby
 * Date: 11/7/13
 * Time: 12:58 PM
 * To change this template use File | Settings | File Templates.
 */
public class triangles {
    public static void main( String args[]){
        int row;
        int column;
        int space;
        //triangle 1
        for(row = 1; row<=10; row++){
            for(column = 1; column <= row && column <=10; column++){
                System.out.print("*");
            }
             System.out.println();

        }

            System.out.println();


        for(row = 1; row<=10; row++){
            for(column = 10; column >= row && column <=10; column--){
                System.out.print("*");
            }
            System.out.println();
        }
        System.out.println();

        //third  triangle
        for(row = 10; row >=1; row--){
            for(space = 10; space >= row; space--){
                System.out.print(" ");
            }
            for(column = 1; column <= row && column <=10; column++){
                System.out.print("*");
            }
            System.out.println();
        }
        System.out.println();

        //fourth  triangle
        for(row = 10; row >=1; row--){
            for(space = 1; space <= row; space++){
                System.out.print(" ");
            }
            for(column = 10; column >= row && column <=10; column--){
                System.out.print("*");
            }
            System.out.println();
        }
    }
}