Print hollow triangle
Here given code implementation process.
// C program for
// Print hollow triangle
#include <stdio.h>
// This is display empty space of given length
void includeSpace(int n)
{
for (int i = 0; i < n; ++i)
{
printf(" ");
}
}
void printTriangle(int height)
{
printf("\nGiven height : %d \n", height);
for (int i = 0; i < height; ++i)
{
for (int j = height; j > i; --j)
{
printf("*");
}
// Include space
includeSpace(i *2);
for (int k = height; k > i; --k)
{
printf("*");
}
printf("\n");
}
}
int main(int argc, char const *argv[])
{
// Test
printTriangle(7);
printTriangle(12);
return 0;
}Output
Given height : 7
**************
****** ******
***** *****
**** ****
*** ***
** **
* *
Given height : 12
************************
*********** ***********
********** **********
********* *********
******** ********
******* *******
****** ******
***** *****
**** ****
*** ***
** **
* */*
Java Program
Print hollow triangle
*/
public class Pattern
{
// This is display empty space of given length
public void includeSpace(int n)
{
for (int i = 0; i < n; ++i)
{
System.out.print(" ");
}
}
public void printTriangle(int height)
{
System.out.println("\nGiven height : " + height);
for (int i = 0; i < height; ++i)
{
for (int j = height; j > i; --j)
{
System.out.print("*");
}
// Include space
includeSpace(i * 2);
for (int k = height; k > i; --k)
{
System.out.print("*");
}
System.out.print("\n");
}
}
public static void main(String[] args)
{
Pattern task = new Pattern();
// Test
task.printTriangle(7);
task.printTriangle(12);
}
}Output
Given height : 7
**************
****** ******
***** *****
**** ****
*** ***
** **
* *
Given height : 12
************************
*********** ***********
********** **********
********* *********
******** ********
******* *******
****** ******
***** *****
**** ****
*** ***
** **
* *// Include header file
#include <iostream>
using namespace std;
/*
C++ Program
Print hollow triangle
*/
class Pattern
{
public:
// This is display empty space of given length
void includeSpace(int n)
{
for (int i = 0; i < n; ++i)
{
cout << " ";
}
}
void printTriangle(int height)
{
cout << "\nGiven height : " << height << endl;
for (int i = 0; i < height; ++i)
{
for (int j = height; j > i; --j)
{
cout << "*";
}
// Include space
this->includeSpace(i *2);
for (int k = height; k > i; --k)
{
cout << "*";
}
cout << "\n";
}
}
};
int main()
{
Pattern *task = new Pattern();
// Test
task->printTriangle(7);
task->printTriangle(12);
return 0;
}Output
Given height : 7
**************
****** ******
***** *****
**** ****
*** ***
** **
* *
Given height : 12
************************
*********** ***********
********** **********
********* *********
******** ********
******* *******
****** ******
***** *****
**** ****
*** ***
** **
* *// Include namespace system
using System;
/*
Csharp Program
Print hollow triangle
*/
public class Pattern
{
// This is display empty space of given length
public void includeSpace(int n)
{
for (int i = 0; i < n; ++i)
{
Console.Write(" ");
}
}
public void printTriangle(int height)
{
Console.WriteLine("\nGiven height : " + height);
for (int i = 0; i < height; ++i)
{
for (int j = height; j > i; --j)
{
Console.Write("*");
}
// Include space
this.includeSpace(i * 2);
for (int k = height; k > i; --k)
{
Console.Write("*");
}
Console.Write("\n");
}
}
public static void Main(String[] args)
{
Pattern task = new Pattern();
// Test
task.printTriangle(7);
task.printTriangle(12);
}
}Output
Given height : 7
**************
****** ******
***** *****
**** ****
*** ***
** **
* *
Given height : 12
************************
*********** ***********
********** **********
********* *********
******** ********
******* *******
****** ******
***** *****
**** ****
*** ***
** **
* *package main
import "fmt"
/*
Go Program
Print hollow triangle
*/
// This is display empty space of given length
func includeSpace(n int) {
for i := 0 ; i < n ; i++ {
fmt.Print(" ")
}
}
func printTriangle(height int) {
fmt.Println("\nGiven height : ", height)
for i := 0 ; i < height ; i++ {
for j := height ; j > i ; j-- {
fmt.Print("*")
}
// Include space
includeSpace(i * 2)
for k := height ; k > i ; k-- {
fmt.Print("*")
}
fmt.Print("\n")
}
}
func main() {
// Test
printTriangle(7)
printTriangle(12)
}Output
Given height : 7
**************
****** ******
***** *****
**** ****
*** ***
** **
* *
Given height : 12
************************
*********** ***********
********** **********
********* *********
******** ********
******* *******
****** ******
***** *****
**** ****
*** ***
** **
* *<?php
/*
Php Program
Print hollow triangle
*/
class Pattern
{
// This is display empty space of given length
public function includeSpace($n)
{
for ($i = 0; $i < $n; ++$i)
{
echo(" ");
}
}
public function printTriangle($height)
{
echo("\nGiven height : ".$height.
"\n");
for ($i = 0; $i < $height; ++$i)
{
for ($j = $height; $j > $i; --$j)
{
echo("*");
}
// Include space
$this->includeSpace($i * 2);
for ($k = $height; $k > $i; --$k)
{
echo("*");
}
echo("\n");
}
}
}
function main()
{
$task = new Pattern();
// Test
$task->printTriangle(7);
$task->printTriangle(12);
}
main();Output
Given height : 7
**************
****** ******
***** *****
**** ****
*** ***
** **
* *
Given height : 12
************************
*********** ***********
********** **********
********* *********
******** ********
******* *******
****** ******
***** *****
**** ****
*** ***
** **
* */*
Node JS Program
Print hollow triangle
*/
class Pattern
{
// This is display empty space of given length
includeSpace(n)
{
for (var i = 0; i < n; ++i)
{
process.stdout.write(" ");
}
}
printTriangle(height)
{
console.log("\nGiven height : " + height);
for (var i = 0; i < height; ++i)
{
for (var j = height; j > i; --j)
{
process.stdout.write("*");
}
// Include space
this.includeSpace(i * 2);
for (var k = height; k > i; --k)
{
process.stdout.write("*");
}
process.stdout.write("\n");
}
}
}
function main()
{
var task = new Pattern();
// Test
task.printTriangle(7);
task.printTriangle(12);
}
main();Output
Given height : 7
**************
****** ******
***** *****
**** ****
*** ***
** **
* *
Given height : 12
************************
*********** ***********
********** **********
********* *********
******** ********
******* *******
****** ******
***** *****
**** ****
*** ***
** **
* *# Python 3 Program
# Print hollow triangle
class Pattern :
# This is display empty space of given length
def includeSpace(self, n) :
i = 0
while (i < n) :
print(" ", end = "")
i += 1
def printTriangle(self, height) :
print("\nGiven height : ", height)
i = 0
while (i < height) :
j = height
while (j > i) :
print("*", end = "")
j -= 1
# Include space
self.includeSpace(i * 2)
k = height
while (k > i) :
print("*", end = "")
k -= 1
print(end = "\n")
i += 1
def main() :
task = Pattern()
# Test
task.printTriangle(7)
task.printTriangle(12)
if __name__ == "__main__": main()Output
Given height : 7
**************
****** ******
***** *****
**** ****
*** ***
** **
* *
Given height : 12
************************
*********** ***********
********** **********
********* *********
******** ********
******* *******
****** ******
***** *****
**** ****
*** ***
** **
* *# Ruby Program
# Print hollow triangle
class Pattern
# This is display empty space of given length
def includeSpace(n)
i = 0
while (i < n)
print(" ")
i += 1
end
end
def printTriangle(height)
print("\nGiven height : ", height, "\n")
i = 0
while (i < height)
j = height
while (j > i)
print("*")
j -= 1
end
# Include space
self.includeSpace(i * 2)
k = height
while (k > i)
print("*")
k -= 1
end
print("\n")
i += 1
end
end
end
def main()
task = Pattern.new()
# Test
task.printTriangle(7)
task.printTriangle(12)
end
main()Output
Given height : 7
**************
****** ******
***** *****
**** ****
*** ***
** **
* *
Given height : 12
************************
*********** ***********
********** **********
********* *********
******** ********
******* *******
****** ******
***** *****
**** ****
*** ***
** **
* *
/*
Scala Program
Print hollow triangle
*/
class Pattern()
{
// This is display empty space of given length
def includeSpace(n: Int): Unit = {
var i: Int = 0;
while (i < n)
{
print(" ");
i += 1;
}
}
def printTriangle(height: Int): Unit = {
println("\nGiven height : " + height);
var i: Int = 0;
while (i < height)
{
var j: Int = height;
while (j > i)
{
print("*");
j -= 1;
}
// Include space
includeSpace(i * 2);
var k: Int = height;
while (k > i)
{
print("*");
k -= 1;
}
print("\n");
i += 1;
}
}
}
object Main
{
def main(args: Array[String]): Unit = {
var task: Pattern = new Pattern();
// Test
task.printTriangle(7);
task.printTriangle(12);
}
}Output
Given height : 7
**************
****** ******
***** *****
**** ****
*** ***
** **
* *
Given height : 12
************************
*********** ***********
********** **********
********* *********
******** ********
******* *******
****** ******
***** *****
**** ****
*** ***
** **
* */*
Swift 4 Program
Print hollow triangle
*/
class Pattern
{
// This is display empty space of given length
func includeSpace(_ n: Int)
{
var i: Int = 0;
while (i < n)
{
print(" ", terminator: "");
i += 1;
}
}
func printTriangle(_ height: Int)
{
print("\nGiven height : ", height);
var i: Int = 0;
while (i < height)
{
var j: Int = height;
while (j > i)
{
print("*", terminator: "");
j -= 1;
}
// Include space
self.includeSpace(i * 2);
var k: Int = height;
while (k > i)
{
print("*", terminator: "");
k -= 1;
}
print(terminator: "\n");
i += 1;
}
}
}
func main()
{
let task: Pattern = Pattern();
// Test
task.printTriangle(7);
task.printTriangle(12);
}
main();Output
Given height : 7
**************
****** ******
***** *****
**** ****
*** ***
** **
* *
Given height : 12
************************
*********** ***********
********** **********
********* *********
******** ********
******* *******
****** ******
***** *****
**** ****
*** ***
** **
* */*
Kotlin Program
Print hollow triangle
*/
class Pattern
{
// This is display empty space of given length
fun includeSpace(n: Int): Unit
{
var i: Int = 0;
while (i < n)
{
print(" ");
i += 1;
}
}
fun printTriangle(height: Int): Unit
{
println("\nGiven height : " + height);
var i: Int = 0;
while (i < height)
{
var j: Int = height;
while (j > i)
{
print("*");
j -= 1;
}
// Include space
this.includeSpace(i * 2);
var k: Int = height;
while (k > i)
{
print("*");
k -= 1;
}
print("\n");
i += 1;
}
}
}
fun main(args: Array < String > ): Unit
{
val task: Pattern = Pattern();
// Test
task.printTriangle(7);
task.printTriangle(12);
}Output
Given height : 7
**************
****** ******
***** *****
**** ****
*** ***
** **
* *
Given height : 12
************************
*********** ***********
********** **********
********* *********
******** ********
******* *******
****** ******
***** *****
**** ****
*** ***
** **
* *
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