What will the output be after running this code if num is initialized to 100?

When analyzing the code and the initialization of the variable num to 100, it's important to understand what the code actually does after this initialization. If there are no operations modifying the value of num following the initialization, then the value remains unchanged. In this case, since num starts at 100 and is not altered, the output simply reflects this initial value.

Should the code include operations, it must be clear if they specifically affect num. However, if there are no such operations, you can conclude that the output will be the same as the initialized value, which is 100. This makes the output not just specific to the initialization, but also solidifies the understanding that unless a variable is modified through an action, the output will mirror its last known state.