What output will the following code segment produce: print("Hello", end=" "); print("World!")?

The code segment print("Hello", end=" "); print("World!") demonstrates how the print function in Python can be customized using its parameters.

In the first print statement, the string "Hello" is printed, and the end parameter is set to a single space character (" "). By default, the print function adds a newline character at the end of the output, but in this case, the newline is replaced with a space. Therefore, after printing "Hello", there is a space instead of moving to a new line.

The second print statement then executes and prints "World!" right after the space generated from the first statement. As a result, when the two statements are combined, the output will appear as "Hello World!" with a space in between.

Understanding the behavior of the end parameter is key here, as it allows for controlling how the output of the print function concludes, making this output format important in Python programming.