Community driven content discussing all aspects of software development from DevOps to design patterns. The easiest way to convert from a long to a String in Java is to add the long to an empty set of ...

Community driven content discussing all aspects of software development from DevOps to design patterns. The Java String printf method can be confusing at first, but it greatly simplifies how you ...

When working with dates and times in SQL Server, it’s common for formatting discrepancies to cause issues during query execution. To prevent errors, it’s crucial to ensure that date strings are ...

When I upgrade spring-data-mongodb from 3.1.8 to 3.3.5, I encountered below exception: org.springframework.data.mapping.MappingException: Cannot convert [a, b, c] of type class java.util.ArrayList ...

The array X = np.array([np.nan,np.nan,"foo",np.nan,np.nan]) converts the np.nan to 'nan' i.e a string instead of keeping it as np.nan. This can really easy introduce bugs, since stuff like pd.issnull( ...