Python Program to Print Hollow Rectangle Number Pattern

This article shows how to write a Python Program to Print a Hollow Rectangle Number Pattern using a for loop, while loop, and functions. This example uses the for loop to iterate rows and columns and the if else statement to print the Hollow Rectangle Number Pattern.

rows = int(input("Enter the Total Number of Rows  : "))
columns = int(input("Enter the Total Number of Columns  : "))

print("Hollow Rectangle Number Pattern")

for i in range(1, rows + 1):
    for j in range(1, columns + 1):
        if i == 1 or i == rows or j == 1 or j == columns:
            print(i, end = '  ')
        else:
            print(' ', end = '  ')
    print()

Output.

As you can see from the above example, it prints the same number on each row. However, the below example prints the same number on each column.

rows = int(input("Enter the Total Number of Rows  : "))
columns = int(input("Enter the Total Number of Columns  : "))

print("Hollow Rectangle Number Pattern")

for i in range(1, rows + 1):
    for j in range(1, columns + 1):
        if i == 1 or i == rows or j == 1 or j == columns:
            print(j, end = '  ')
        else:
            print(' ', end = '  ')
    print()

Output

Enter the Total Number of Rows  : 9
Enter the Total Number of Columns  : 10
Hollow Rectangle Number Pattern
1  2  3  4  5  6  7  8  9  10  
1                          10  
1                          10  
1                          10  
1                          10  
1                          10  
1                          10  
1                          10  
1  2  3  4  5  6  7  8  9  10  

This Python program replaces the for loop in the above example with a while loop to print the Rectangle Number Pattern.

rows = int(input("Enter the Total Number of Rows  : "))
columns = int(input("Enter the Total Number of Columns  : "))

print("Hollow Rectangle Number Pattern")

i = 1
while i <= rows:
    j = 1
    while j <= columns:
        if i == 1 or i == rows or j == 1 or j == columns:
            print(i, end = '  ')
        else:
            print(' ', end = '  ')
        j = j + 1
    i = i + 1
    print()

Output

Enter the Total Number of Rows  : 5
Enter the Total Number of Columns  : 8
Hollow Rectangle Number Pattern
1  1  1  1  1  1  1  1  
2                    2  
3                    3  
4                    4  
5  5  5  5  5  5  5  5