Program to Print Circle Star Pattern
In this article we are going to see how to print the circle star pattern.
Example-1 When size value=10 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
Example-2 When size value=5 * * * * * * * * * * * *
Now, let’s see the actual program to print it.
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Approach:
- Enter size and store it in an integer variable
size. - Take outer for loop to iterate the rows.
- Set the iterators using the nested if…else.
- Use two for loops using the iterators to print space and stars.
JAVA Code:
Method-1: Static Star Character
import java.util.Scanner;
class Main
{
public static void main(String[] args)
{
int r,c,k,iter_1,iter_2, size;
Scanner scan = new Scanner(System.in);
//Taking size as input from user
System.out.print("Size : ");
size =scan.nextInt();
//Outer loop
for(r=1;r<=size;r++)
{
//Nested if..else to set the iterators value
if(r==1||r==size){
iter_2 = 4;
iter_1 = size-iter_2;
}
else if(r==2||r==size-1){
iter_2 = 2;
iter_1 = size-iter_2;
}
else if(r==3||r==size-2){
iter_2 = 1;
iter_1 = size-iter_2;
}
else{
iter_2 = 0;
iter_1 = size;
}
//Iterators to print space and star
for(c = 1; c <= iter_2; c++)
{
System.out.print(" ");
}
for(k = 1; k <= iter_1; k++)
{
System.out.print("* ");
}
System.out.println();
//Prints a newline
}
}
}
Output size : 10 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
Method-2: User Input Character
import java.util.Scanner;
class Main
{
public static void main(String[] args)
{
int r,c,k,iter_1,iter_2, size;
char circle;
Scanner scan = new Scanner(System.in);
//Taking size as input from user
System.out.print("Size : ");
size =scan.nextInt();
//Taking size as input from user
System.out.print("Character : ");
circle =scan.next().charAt(0);
//Outer loop
for(r=1;r<=size;r++)
{
//Nested if..else to set the iterators value
if(r==1||r==size){
iter_2 = 4;
iter_1 = size-iter_2;
}
else if(r==2||r==size-1){
iter_2 = 2;
iter_1 = size-iter_2;
}
else if(r==3||r==size-2){
iter_2 = 1;
iter_1 = size-iter_2;
}
else{
iter_2 = 0;
iter_1 = size;
}
//Iterators to print space and star
for(c = 1; c <= iter_2; c++)
{
System.out.print(" ");
}
for(k = 1; k <= iter_1; k++)
{
System.out.print(circle+" ");
}
System.out.println();
//Prints a newline
}
}
}
Output: size : 10 Charact5er: * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
C Code:
#include <stdio.h>
int main(int argc, char const *argv[])
{
int size;
printf("size : ");
scanf("%d", &size);
//Taking size as input from user.
int r, c, k, iter_1, iter_2;
for (r = 1; r <= size; r++)
{ //Outer loop
//Nested if..else to set the iterators value
if (r == 1 || r == size)
{
iter_2 = 4;
iter_1 = size - iter_2;
}
else if (r == 2 || r == size - 1)
{
iter_2 = 2;
iter_1 = size - iter_2;
}
else if (r == 3 || r == size - 2)
{
iter_2 = 1;
iter_1 = size - iter_2;
}
else
{
iter_2 = 0;
iter_1 = size;
}
//Iterators to print space and star
for (c = 1; c <= iter_2; c++)
{
printf(" ");
}
for (k = 1; k <= iter_1; k++)
{
printf("* ");
}
printf("\n");
//Prints a newline
}
return 0;
}
Output: size : 10 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
C++ Code:
#include <iostream>
using namespace std;
int main(int argc, char const *argv[])
{
int size;
cout << "size : ";
cin >> size;
//Taking size as input from user.
int r, c, k, iter_1, iter_2;
for (r = 1; r <= size; r++)
{ //Outer loop
//Nested if..else to set the iterators value
if (r == 1 || r == size)
{
iter_2 = 4;
iter_1 = size - iter_2;
}
else if (r == 2 || r == size - 1)
{
iter_2 = 2;
iter_1 = size - iter_2;
}
else if (r == 3 || r == size - 2)
{
iter_2 = 1;
iter_1 = size - iter_2;
}
else
{
iter_2 = 0;
iter_1 = size;
}
//Iterators to print space and star
for (c = 1; c <= iter_2; c++)
{
cout << " ";
}
for (k = 1; k <= iter_1; k++)
{
cout << "* ";
}
cout << endl;
}
return 0;
}
Output: size : 10 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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