Python
# Program to split and join a string
sentence = input("Enter a sentence: ")
delimiter = input("Enter delimiter: ")
words = sentence.split()
joined = delimiter.join(words)
print("Joined string:", joined)Output
Enter a sentence: split this string Enter delimiter: - Joined string: split-this-string
We use .split() to break on whitespace and delimiter.join(words) to join with a custom separator.