Java Program to Print Alphabet I Star Pattern

Program to Print Alphabet I Star Pattern

In this article we are going to see how to print I star program.

Example-1

When row value=6      

******
   * 
   * 
   * 
   * 
******

Example-2:

When row value=5

*****
   * 
   * 
   * 
*****

Now, let’s see the actual program to print it.

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Approach:

Enter total row and store it in an integer variable row.
Take first for loop to print the row value .
Take first inner for loop to print column value i.e., star according to condition
if (r == 0 || r == row - 1) and if (c == row / 2) else loop will print space .
Then go on printing the star symbol according to loop.

JAVA Code:

Static Star Character
User Input Character

Method-1 : Static Star Character

import java.util.*;
public class Main 
{    
    public static void main(String args[])   
    {   
    // taking variable for loop iteration and row .
    int row,r,c,d=0;
    //creating object 
    Scanner s = new Scanner(System.in);
    // entering the number of row
    System.out.print ("Enter rows : ");
    row = s.nextInt();
    //outer for loop 
   for (r = 0; r < row; r++) 
    {
        for (c = 0; c < row; c++)
        {
            if (r == 0 || r == row - 1)
                System.out.print ("*");
            else if (c == row / 2)
                System.out.print ("*");
            else
                System.out.print (" ");
        }
        System.out.print ("\n");
    }
    }
}

Output:

Enter rows : 5

***** 
   * 
   *
   * 
*****

Method-2 :User Input Character

import java.util.*;
public class Main 
{    
    public static void main(String args[])   
    {   
    // taking variable for loop iteration and row .
    int row,r,c,d=0;
    char i;
    //creating object 
    Scanner s = new Scanner(System.in);
    // entering the number of row
    System.out.print ("Enter rows : ");
    row = s.nextInt();
    // entering any random character
    System.out.print ("Enter character : ");
    i = s.next().charAt(0);
    //outer for loop 
   for (r = 0; r < row; r++) 
    {
        for (c = 0; c < row; c++)
        {
            if (r == 0 || r == row - 1)
                System.out.print (i);
            else if (c == row / 2)
                System.out.print (i);
            else
                System.out.print (" ");
        }
        System.out.print ("\n");
    }
    }
}

Output:

Enter rows : 5
Enter character : $

$$$$$
    $
    $
    $
$$$$$

C Code:

#include <stdio.h>
int main() {
   int r, row, c ,d;
   printf("Enter rows: ");
   scanf("%d", &row);
  for (r = 0; r < row; r++) 
    {
        for (c = 0; c < row; c++)
        {
            if (r == 0 || r == row - 1)
                 printf("*");
            else if (c == row / 2)
                 printf("*");
            else
                 printf(" ");
        }
         printf("\n");
    }
   return 0;
}

Output:

Enter rows : 5

***** 
   * 
   *
   * 
*****

C++ Code:

#include <iostream>
using namespace std;
int main()
{
   int row, r , c ,d ;
   cout << "Enter  rows: ";
   cin >> row;
  for (r = 0; r < row; r++) 
    {
        for (c = 0; c < row; c++)
        {
            if (r == 0 || r == row - 1)
                cout << "*";
            else if (c == row / 2)
                cout << "*";
            else
                cout << " ";
        }
        cout << "\n";
    }
   return 0;
}

Output:

Enter rows : 5

***** 
   * 
   *
   * 
*****

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