Answer by Sharmilli Priyadarsini:
Inspite of the experiences, people make mistakes, but the number of mistakes done by a fresher will be greater than the experienced. Moreover, you cannot learn if you do not make mistakes. A senior programmer doing the code review of another, will look for the same mistakes he did in the early stages of his career and advise his peer how to fix the mistakes and about the best practices to be followed while coding. Sometimes the code review will be a learning experience for the senior programmer also.
All we have to do is, being open for the comments and share your knowledge despite your experience.