Here is a Python program that prints the duplicate characters in a given string. It converts all uppercase letters to lowercase to ensure case insensitivity.

```python
def print_duplicates(s):
s = s.lower()
duplicates = []
for char in s:
if s.count(char) 1 and char not in duplicates:
duplicates.append(char)
print(":".join(duplicates))

# Test the function
print_duplicates("Hello World")
```

In this program, we first convert the string to lowercase. Then we iterate over each character in the string. If the count of that character in the string is more than 1 and it is not already in our list of duplicates, we add it to the list. Finally, we print the list of duplicates, joining them with a colon.

This program will print the first occurrence of each duplicate character. If a character appears more than once, it will still only be printed once.

Question

Here is a Python program that prints the duplicate characters in a given string. It converts all uppercase letters to lowercase to ensure case insensitivity.

```python
def print_duplicates(s):
    s = s.lower()
    duplicates = []
    for char in s:
        if s.count(char) > 1 and char not in duplicates:
            duplicates.append(char)
    print(":".join(duplicates))

# Test the function
print_duplicates("Hello World")
```

In this program, we first convert the string to lowercase. Then we iterate over each character in the string. If the count of that character in the string is more than 1 and it is not already in our list of duplicates, we add it to the list. Finally, we print the list of duplicates, joining them with a colon.

This program will print the first occurrence of each duplicate character. If a character appears more than once, it will still only be printed once.

Knowee AI · Accepted Answer

Here is a Python program that prints the duplicate characters in a given string. It converts all uppercase letters to lowercase to ensure case insensitivity.

```python
def print_duplicates(s):
    s = s.lower()
    duplicates = []
    for char in s:
        if s.count(char) > 1 and char not in duplicates:
            duplicates.append(char)
    print(":".join(duplicates))

# Test the function
print_duplicates("Hello World")
```

In this program, we first convert the string to lowercase. Then we iterate over each character in the string. If the count of that character in the string is more than 1 and it is not already in our list of duplicates, we add it to the list. Finally, we print the list of duplicates, joining them with a colon.

This program will print the first occurrence of each duplicate character. If a character appears more than once, it will still only be printed once.

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