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# String check example 1
text1 = "Python programming"
print("String:", text1)
print("'programming' in text1:", "programming" in text1)  # True
print()


# String check example 2
text2 = "Hello, welcome!"
print("String:", text2)
print("'welcome' in text2:", "welcome" in text2)  # True
print("'thanks' in text2:", "thanks" in text2)  # False
print()

# How to Check for the Existence of a Specific Character in a String

The `in` operator returns `True` if a specific substring or character exists within a string, and `False` if it does not.

```python title="Example of using the in operator"
text = "Python programming"

result = "programming" in text

print(result)  # True
```

<br />

## Finding a Substring

A `substring` refers to a **specific part of a string** within a larger string.

The following example checks if the substring `'Welcome'` is included in the string `greeting`.

```python title="Finding a substring example"
greeting = "Hello, welcome!"

if "welcome" in greeting:
    print("'Welcome' is included in the string.")
else:
    print("'Welcome' is not included in the string.")
```

<br />

The `in` operator is frequently used in conditions, loops, and other scenarios to check for the existence of a specific pattern within a string.

The 'in' operator returns True if a particular substring or character exists within the string.

The `in` operator is used to check if a particular substring or character exists within a string.