Java Program to Print Alphabet L Star Pattern

Stars.java – Java Program to Print Alphabet L Star Pattern

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Program to Print Alphabet L Star Pattern

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Example-1

When row value=4      

*      
*      
*      
* * * * * *
Example-2:

When row value=5

*      
*      
*      
*      
* * * * * * *

Enhancing programming skills is very important no matter what language you have chosen. So, practice frequently with these simple java programs examples and excel in coding the complex logic.

Approach:

  • Enter total row and store it in an integer variable row.
  • Take first for loop to print the row value and a star for each row  .
  • Take first inner for loop to print column value i.e., star or spaces according to condition  if (r== row-1) .
  • Then go on printing the star symbol according to loop.

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

JAVA Code:

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;
    //creating object 
    Scanner s = new Scanner(System.in);
    
    // entering the number of row
    System.out.println("Enter rows : ");
    row = s.nextInt();
    
    //outer for loop 
    for (r = 0; r < row ; r++) 
    {
        // this line prints first column stars
        System.out.print("* ");
        // inner for loop
        for (c = 0; c <= row; c++)
        {
            // printing stars
            if (r == row - 1)
                System.out.print("* ");
            // printing space
            else
                System.out.print(" ");
        }
        System.out.print ("\n");
    }
    }
}

Output :

Enter row :  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;
    char l;
    
    //creating scanner class object 
    Scanner s = new Scanner(System.in);
    
    // entering the number of row
    System.out.print("Enter rows : ");
    row = s.nextInt();
    
    // entering any random character
    // which will be used to print L pattern
    System.out.print("Enter character : ");
    l = s.next().charAt(0);
    
    //outer for loop 
    for (r = 0; r < row ; r++) 
    {
        // this line prints first column stars
        System.out.print(l+" ");
        // inner for loop
        for (c = 0; c <= row; c++)
        {
            // printing stars
            if (r == row - 1)
                System.out.print(l+" ");
            // printing space
            else
                System.out.print(" ");
        }
        System.out.print ("\n");
    }
    }
}

Output :

Enter row :  5
Enter character : L

L      
L     
L     
L      
L L L L L L L

C Code:

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


Output :

Enter row :  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++) 
    {
        cout << "* ";
        for (c = 0; c <= row; c++)
        {
            if (r == row - 1)
                cout << "* ";
            else
                cout << " ";
        }
        cout << "\n";
    }
   return 0;
}


Output :

Enter row :  5 

*      
*      
*      
*      
* * * * * * *

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