Python Program to Print Right Arrow Star Pattern

This article shows how to write a Python Program to Print the Right Arrow Star Pattern using a for loop, while loop, and functions. This example uses the nested for loop to iterate and print the Right Arrow Star Pattern.

rows = int(input("Enter Right Arrow Star Pattern Rows = "))

print("====Right Arrow Star Pattern====")

for i in range(rows):
    for j in range(rows):
        if j < i:
            print(end = ' ')
        else:
            print('*', end = '')      
    print()

for i in range(2, rows +  1):
    for j in range(0, rows):
        if j < rows - i:
            print(end = ' ')
        else:
            print('*', end = '')      
    print()

Output.

This Python program replaces the above for loop with a while loop to print the Right Arrow Star Pattern.

rows = int(input("Enter Right Arrow Star Pattern Rows = "))

print("====Right Arrow Star Pattern====")

i = 0
while i < rows:
    j =0
    while j < rows:
        if j < i:
            print(end = ' ')
        else:
            print('*', end = '')
        j = j + 1
    i = i + 1
    print()

i = 2
while i <= rows:
    j = 0
    while j < rows:
        if j < rows - i:
            print(end = ' ')
        else:
            print('*', end = '')
        j = j + 1
    i = i + 1
    print()

Output

Enter Right Arrow Star Pattern Rows = 7
====Right Arrow Star Pattern====
*******
 ******
  *****
   ****
    ***
     **
      *
     **
    ***
   ****
  *****
 ******
*******

In this example, we created a RightArrow function that accepts the rows, i value, and characters to Print the Right Arrow Star Pattern. It replaces the star in the right arrow pattern with a given symbol.

def RightArrow(rows, i, ch):
    for j in range(i):
        print(end = ' ')
    for k in range(i, rows):
        print('%c' %ch, end = '')               
    print()
         

rows = int(input("Enter Right Arrow Star Pattern Rows = "))
ch = input("Symbol in Right Arrow Pattern = ")

for i in range(rows):
    RightArrow(rows, i, ch)
        
for i in range(rows - 1, -1, -1):
    RightArrow(rows, i, ch)

Output

Enter Right Arrow Star Pattern Rows = 8
Symbol in Right Arrow Pattern = @
@@@@@@@@
 @@@@@@@
  @@@@@@
   @@@@@
    @@@@
     @@@
      @@
       @
       @
      @@
     @@@
    @@@@
   @@@@@
  @@@@@@
 @@@@@@@
@@@@@@@@