x by stars, Java - rextester

x by stars

//'main' method must be in a class 'Rextester'.
//Compiler version 1.8.0_111

import java.util.Scanner;

class Rextester
{  
    public static void main(String args[])
    {
           Scanner in=new Scanner(System.in);
            int n;
             n=in.nextInt();
             for(int i=1;i<=n;i++)
             {
                     for(int j=1;j<=i;j++)
                           System.out.print(" ");
                     for(int k=1;k<=i;k++)
                           System.out.print("*");
                      for(int l=0;l<=(4*n)-(4*i);l++)
                         System.out.print(" ");
                      for(int m=1;m<=i;m++)
                          System.out.print("*");
                             System.out.println("");
                    }    
            for(int i=2;i<=n;i++)
             {
                     for(int j=1;j<=n-i+1;j++)
                           System.out.print(" ");
                     for(int k=1;k<=n-i+1;k++)
                           System.out.print("*");
                      for(int l=1;l<=4*(i-1);l++)
                         System.out.print(" ");
                      for(int m=1;m<=(n-i+1);m++)
                          System.out.print("*");
                       System.out.println("");
             }
    }
}


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