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Hollow_Butterfly.java
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Hollow_Butterfly.java
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import java.util.*;
public class Hollow_Butterfly {
public static void main(String[] args) {
System.out.print("Enter the Number: ");
Scanner sc = new Scanner(System.in);
int n = sc.nextInt();
// Upper Part
for (int i = 1; i <= n; i++) {
for (int j = 1; j <= i; j++) {
if (j == 1 || j == i) {
System.out.print("*");
}
else
{
System.out.print(" ");
}
}
int space = 2*(n-i);
for (int j = 1; j <= space; j++) {
System.out.print(" ");
}
for (int j = 1; j <= i; j++) {
if (j == 1 || j == i) {
System.out.print("*");
}
else
{
System.out.print(" ");
}
}
System.out.println();
}
// Lower Part
for (int i = n; i >= 1; i--) {
for (int j = 1; j <= i; j++) {
if (j == 1 || j == i) {
System.out.print("*");
}
else
{
System.out.print(" ");
}
}
int space = 2*(n-i);
for (int j = 1; j <= space; j++) {
System.out.print(" ");
}
for (int j = 1; j <= i; j++) {
if (j == 1 || j == i) {
System.out.print("*");
}
else
{
System.out.print(" ");
}
}
System.out.println();
}
sc.close();
}
}