Program to Print Kite Star Pattern
* *** ***** ******* ********* ******* ***** *** * *** *****
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Approach:
- Take first for loop to print one pyramid.
- Take a second for loop to print a inverted pyramid.
- Take a third for loop to print a small pyramid.
- The inner loop of all three loops will print column values
JAVA Code:
Method-1 : Static Star Character
import java.io.*;
public class Main
{
public static void main(String[] args)
{
int r, c, z, sp, space = 4;
// loop to print one pyramid
for (r = 1; r <= 5; r++)
{
// to print space
for (sp = space; sp >= 1; sp--)
{
System.out.print(" ");
}
// to print *
for (c = 1; c <= r; c++)
{
System.out.print("*");
}
for (z= 1; z <= (r - 1); z++)
{
if (r == 1)
{
continue;
}
System.out.print("*");
}
System.out.println();
space--;
}
space = 1;
// loop to print one inverted pyramid
for (r = 4; r >= 1; r--)
{
for (sp = space; sp >= 1; sp--)
{
System.out.print(" ");
}
for (c = 1; c <= r; c++)
{
System.out.print("*");
}
for (z = 1; z <= (r - 1); z++)
{
System.out.print("*");
}
space++;
System.out.println();
}
space = 3;
// loop to print one small pyramid
for (r = 2; r <= 5; r++)
{
if ((r % 2) != 0)
{
for (sp = space; sp >= 1; sp--)
{
System.out.print(" ");
}
for (c = 1; c <= r; c++)
{
System.out.print("*");
}
}
if ((r % 2) != 0)
{
System.out.println();
space--;
}
}
}
}
Output: * *** ***** ******* ********* ******* ***** *** * *** *****
Method-2 : User Input Character
import java.io.*;
import java.util.*;
public class Main
{
public static void main(String[] args)
{
int r, c, z, sp, space = 4;
Scanner sc=new Scanner(System.in);
System.out.print("Enter any random character : ");
char s=sc.next().charAt(0);
// loop to print one pyramid
for (r = 1; r <= 5; r++)
{
// to print space
for (sp = space; sp >= 1; sp--)
{
System.out.print(" ");
}
// to print *
for (c = 1; c <= r; c++)
{
System.out.print(s);
}
for (z= 1; z <= (r - 1); z++)
{
if (r == 1)
{
continue;
}
System.out.print(s);
}
System.out.println();
space--;
}
space = 1;
// loop to print one inverted pyramid
for (r = 4; r >= 1; r--)
{
for (sp = space; sp >= 1; sp--)
{
System.out.print(" ");
}
for (c = 1; c <= r; c++)
{
System.out.print(s);
}
for (z = 1; z <= (r - 1); z++)
{
System.out.print(s);
}
space++;
System.out.println();
}
space = 3;
// loop to print one small pyramid
for (r = 2; r <= 5; r++)
{
if ((r % 2) != 0)
{
for (sp = space; sp >= 1; sp--)
{
System.out.print(" ");
}
for (c = 1; c <= r; c++)
{
System.out.print(s);
}
}
if ((r % 2) != 0)
{
System.out.println();
space--;
}
}
}
}
Output:
Enter any random character : @
@
@@@
@@@@@
@@@@@@@
@@@@@@@@@
@@@@@@@
@@@@@
@@@
@
@@@
@@@@@
Explanation
Let’s understand the program with detailed explanation.
Iteration to print first pyramid
Iteration-I
r=1 (passed through first for loop condition) which will execute till r<=5. Inside a nested loop print spaces from space till 1 i.e. 4 spaces. Inside another nested loop print symbol from 1 till r and whenever a variable say z<= r-1 skip iteration don’t print symbol i.e. total 1 star.
*
Iteration-II
r=2 (passed through first for loop condition) which will execute till r<=5. Inside nested loop print spaces from space till 1 i.e. 3 spaces. Inside another nested loop prints symbol from 1 till r and whenever a variable say z<= r-1 skip iteration don’t print symbol i.e. total 3 star.
***
Iteration-III
r=3 (passed through first for loop condition) which will execute till r<=5. Inside nested for loop print spaces from space till 1 i.e. 2 spaces. Inside another nested loop prints symbol from 1 till r and whenever a variable say z<= r-1 skip iteration don’t print symbol i.e. total 5 star.
*****
Iteration-IV
r=4 (passed through first for loop condition) which will execute till r<=5. Inside nested for loop print spaces from space till 1 i.e. 1 space. Inside another nested loop prints symbol from 1 till r and whenever a variable say z<= r-1 skip iteration don’t print symbol i.e. total 7 star.
*******
Iteration-V
r=5 (passed through first for loop condition) which will execute till r<=5. Inside nested for loop print spaces from space till 1 i.e. 0 space. Inside another nested loop prints symbol from 1 till r and whenever a variable say z<= r-1 skip iteration don’t print symbol i.e. total 9 star.
*********
Now r=6, so first for loop condition fails. And no more for loop will be executed. So we see a pattern like this.
* *** ***** ******* *********
Iteration to print the invert pyramid
Iteartion-I
r=4 (passed through first for loop condition) which will execute till r>=1. Taking a nested loop iterate a variable sp initially assigned with space=1 till sp<=1, if condition satisfies print spaces i.e. 1 space. Taking another for loop iterate c from 1 till c<=r similarly taking another nested loop iterate variable z till z<= r-1 print the symbols i.e. 7 stars. Increment space.
*******
Iteartion-II
r=3 (passed through first for loop condition) which will execute till r>=1. Taking a nested loop iterate a variable sp initially assigned with space=2 till sp<=1, if condition satisfies print spaces i.e. 2 spaces. Taking another for loop iterate c from 1 till c<=r similarly taking another nested loop iterate variable z till z<= r-1 print the symbols i.e. 5 stars. Increment space.
*****
Iteartion-III
r=2 (passed through first for loop condition) which will execute till r>=1. Taking a nested loop iterate a variable sp intitally assigned with space=3 till sp<=1, if condition satisfies print spaces i.e. 3 spaces. Taking another for loop iterate c from 1 till c<=r similarly taking another nested loop iterate variable z till z<= r-1 print the symbols i.e. 3 stars. Increment space.
***
Iteartion-IV
r=1 (passed through first for loop condition) which will execute till r>=1. Taking a nested loop iterate a variable sp initially assigned with space=4 till sp<=1, if condition satisfies print spaces i.e. 4 spaces. Taking another for loop iterate c from 1 till c<=r similarly taking another nested loop iterate variable z till z<= r-1 print the symbols i.e. 1 star. Increment space.
*
Now r=0, so first for loop condition fails. And no more for loop will be executed. So we see a pattern like this.
******* ***** *** *
Iteration to print the a small pyramid
Iteration-I
r=2 (passed through first for loop condition) which will execute till r<=5. Check if r%2!=0 , since the condition fails here so no code will be executed, hence no output will be shown.
Iteration-II
r=3 (passed through first for loop condition) which will execute till r<=5. Check condition r%2!=0. Since true, take a nested for loop and iterate sp assigned with space as 3 till sp>=1, print spaces i.e. 3 spaces. Iterate another nested loop from c=1 till c<=r, print symbols i.e. 3 stars. Decrement space.
***
Iteration-III
r=4 (passed through first for loop condition). Check if r%2!=0 , since the condition fails here so no code will be executed, hence no output will be shown.
Iteration-IV
r=5 (passed through first for loop condition) which will execute till r<=5. Check condition r%2!=0. Since true, take a nested for loop and iterate sp assigned with space as 2 till sp>=1, print spaces i.e. 2 spaces. Iterate another nested loop from c=1 till c<=r, print symbols i.e. 5 stars. Decrement space.
*****
Now r=6, so first for loop condition fails. And no more for loop will be executed. At last we see a pattern like this.
*** *****
- At last the following output will be shown on the screen.
* *** ***** ******* ********* ******* ***** *** * *** *****
C Code:
#include <stdio.h>
int main()
{
int r, c, z, sp, space = 4;
for (r = 1; r <= 5; r++)
{
for (sp = space; sp >= 1; sp--)
{
printf(" ");
}
for (c = 1; c <= r; c++)
{
printf("*");
}
for (z= 1; z <= (r - 1); z++)
{
if (r == 1)
{
continue;
}
printf("*");
}
printf("\n");
space--;
}
space = 1;
for (r = 4; r >= 1; r--)
{
for (sp = space; sp >= 1; sp--)
{
printf(" ");
}
for (c = 1; c <= r; c++)
{
printf("*");
}
for (z = 1; z <= (r - 1); z++)
{
printf("*");
}
space++;
printf("\n");
}
space = 3;
for (r = 2; r <= 5; r++)
{
if ((r % 2) != 0)
{
for (sp = space; sp >= 1; sp--)
{
printf(" ");
}
for (c = 1; c <= r; c++)
{
printf("*");
}
}
if ((r % 2) != 0)
{
printf("\n");
space--;
}
}
}
Output * *** ***** ******* ********* ******* ***** *** * *** *****
C++ Code:
// C++ Program to print Kite Pattern
#include <bits/stdc++.h>
#include <stdlib.h>
using namespace std;
int main()
{
int i, j, k, sp, space = 4;
char prt = '$';
for (i = 1; i <= 5; i++)
{
for (sp = space; sp >= 1; sp--)
{
cout << " ";
}
// For printing the $
for (j = 1; j <= i; j++)
{
cout << prt;
}
for (k = 1; k <= (i - 1); k++)
{
if (i == 1)
{
continue;
}
cout << prt;
}
cout << "\n";
space--;
}
space = 1;
for (i = 4; i >= 1; i--)
{
for (sp = space; sp >= 1; sp--)
{
cout << " ";
}
for (j = 1; j <= i; j++)
{
cout << prt;
}
for (k = 1; k <= (i - 1); k++)
{
cout << prt;
}
space++;
cout << "\n";
}
space = 3;
for (i = 2; i <= 5; i++)
{
if ((i % 2) != 0)
{
for (sp = space; sp >= 1; sp--)
{
cout << " ";
}
for (j = 1; j <= i; j++)
{
cout << prt;
}
}
if ((i % 2) != 0)
{
cout << "\n";
space--;
}
}
return 0;
}
Output: * *** ***** ******* ********* ******* ***** *** * *** *****
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