Triangle Printing(三角形列印)

Following code segments will print a triangle

public class TriangleDemo {
    /**
     * printing following triangle:
     *       *
     *      **
     *     ***
     *    ****
     *   *****     
     * 
     */
    
    public static void main(String[]args){
        int level = 5;
        for(int i = level ; i > 0 ; i--){
            for(int blank = i-1 ; blank > 0  ;blank--){
                    System.out.print(" ");
            }
            for(int star = i ;star <= level ; star++){
                System.out.print("*");    
            }
            System.out.println("\n");
        }
        
    }

}