java_program/Butterfly.java at main · Shivani-992002/java_program · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
import java.util.*;

public class Butterfly
{
    public static void pattern(int n)
    {
        for(int i=1;i<=n;i++)
        {
            for(int j=1;j<=i;j++)
            {
              System.out.print("*");
            }

            for(int j=1;j<=2*(n-i);j++)
            {
                System.out.print(" ");
            }

            for(int j=1;j<=i;j++)
            {
                System.out.print("*");
            }
        System.out.println();
        }


    for(int i=n;i>=1;i--)
     {
            for(int j=1;j<=i;j++)
            {
              System.out.print("*");
            }

            for(int j=1;j<=2*(n-i);j++)
            {
                System.out.print(" ");
            }

            for(int j=1;j<=i;j++)
            {
                System.out.print("*");
            }
        System.out.println();
    }
    }

    public static void main(String args[])
    {
        pattern(4);
    }
}