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  1. /* package whatever; // don't place package name! */
  2.  
  3. import java.util.*;
  4. import java.lang.*;
  5. import java.io.*;
  6.  
  7. class Patern 
  8. {
  9.     public void patern(int n)
  10.     {
  11.         patern1(n);
  12.         patern3(n);
  13.         patern2(n);
  14.     }
  15.     public void patern1(int n)
  16.     {
  17.         for(int i=0;i<=n/2;i++)
  18.         {
  19.             for(int k=0;k<n/2-i;k++)
  20.             System.out.print(" ");
  21.             for(int j=0;j<2*i+1;j++)
  22.             System.out.print("*");
  23.             System.out.println();
  24.         }
  25.     }
  26.     public void patern2(int n)
  27.     {
  28.         for(int i=0;i<n;i++)
  29.         {
  30.             for(int j=0;j<n;j++)
  31.             {
  32.  
  33.                 if(i>=0&&j==0||i>=0&&j==n-1)
  34.                 System.out.print("@");
  35.                 else
  36.                 System.out.print(" ");
  37.  
  38.  
  39.             }
  40.             System.out.println();
  41.         }
  42.         for(int i=0;i<n;i++)
  43.         {
  44.             for(int j=i;j<=i;j++)
  45.             System.out.print("*");
  46.         }
  47.     }
  48.     public void patern3(int n)
  49.     {
  50.         //for(int i=0;i<=n/2;i++)
  51.         //System.out.println();
  52.         for(int i=1;i<n/2;i++)
  53.         {
  54.             for(int k=1;k<=n/2-i;k++)
  55.             System.out.print(" ");
  56.             for(int j=1;j<2*i;j++)
  57.             System.out.print("*");
  58.             System.out.println();
  59.         }
  60.     }
  61. }
  62. class Ideone
  63. {
  64. 	public static void main (String[] args) throws java.lang.Exception
  65. 	{
  66. 		 new Patern().patern(7);
  67. 	}
  68. }
Success #stdin #stdout 0.06s 32692KB
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stdin
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Standard input is empty
stdout
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   *
  ***
 *****
*******
  *
 ***
@     @
@     @
@     @
@     @
@     @
@     @
@     @
*******
https://ideone.com/rQrM9M
language:
Java (HotSpot 12)
created:
4 years ago
visibility:
public

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