双for循环

public class Dome1{
    public static void main (String []args){
        for(int i=1;i<=5;i++){
                for(int j=1;j<=5-i;j++){
            System.out.print(" ");        
        }
            for(int j=1;j<=2*i-1;j++){
                System.out.print("*");
            }
            System.out.println();
        }
        System.out.println("------------------");
    }
}