Write a program to repeat the string ‘‘GOOD MORNING” n times. Here ‘n’ is an integer entered by the user.

Exercises · Q16

Q. Write a program to repeat the string ‘‘GOOD MORNING” n times. Here ‘n’ is an integer entered by the user.

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Concept understanding — String Repetition

Suppose you want a decorative line of forty dashes under a heading, or the word "ha" written five times to show laughter. You could type it all out by hand, count carefully, and hope you did not miss one. Or you could tell Python: take this piece of text and repeat it this many times. That instruction is string repetition, and Python spells it with the asterisk, the same symbol it uses for multiplication.

When the asterisk sits between a string and a whole number, Python builds a new string made of that many copies joined end to end:

print("ha" * 3)        # hahaha
print("-" * 40)        # a ruler line of 40 dashes
print(3 * "ab")        # ababab  (order does not matter)

The precise rules are worth knowing because examiners test them:

One side must be a string, the other side must be an integer. A string times a string, or a string times a decimal number like 2.5, raises a TypeError — Python cannot make half a copy.
Repeating by zero or by a negative number quietly produces an empty string, not an error.
The result is a brand-new string. Strings in Python are immutable — the original is never altered; repetition manufactures a fresh one.

It helps to see this as the natural partner of concatenation. The plus sign joins two different strings once; the asterisk joins the same string to itself many times. "ab" * 3 is exactly "ab" + "ab" + "ab", written without the tedium. …

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Read n as an integer, then either loop n times or use string repetition:

n = int(input("Enter n: "))
for i in range(n):
    print("GOOD MORNING")

Sample run (n = 3):

Enter n: 3
GOOD MORNING
GOOD MORNING
GOOD MORNING
``` …

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Read n with int(input(...)) and print "GOOD MORNING" n times — either with a for-loop over range(n) or with the string repetition operator *.

The concept here is string repetition: Python's * operator, applied to a string and an integer, repeats the string. The same task can be done with a loop, which is the more general pattern.

Method 1 — loop (prints the message on n separate lines):

n = int(input("Enter n: "))
for i in range(n):
    print("GOOD MORNING")

Method 2 — string repetition (one expression):

n = int(input("Enter n: "))
print("GOOD MORNING\n" * n)

Here "GOOD MORNING\n" * n builds one long string containing the message n times, each followed by a newline, and prints it in one go. (Without the embedded newline, "GOOD MORNING" * n would run the words together on a single line: GOOD MORNINGGOOD MORNING….) …

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Q.Write a program to repeat the string ‘‘GOOD MORNING” n times. Here ‘n’ is an integer entered by the user.

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