i am implementing a database server and a client which connects to it. i need to implement an interface that was given to me for the server. there are two methods, lock and unlock, which lock and unlock the specified record. my question is this: why would i need two methods which lock and unlock records during an update or delete by the client? can't i take care of that by synchronizing the update and delete methods?
Java contains several comparison operators (e.g., <, <=, >, >=, ==, !=) that allow you to compare primitive values. However, these operators cannot be used to compare the contents of objects.
Interface Comparable is used to allow objects of a cl…
Viewers learn how to read error messages and identify possible mistakes that could cause hours of frustration. Coding is as much about debugging your code as it is about writing it.
Define Error Message:
Type of Error:
How to fix incompatible JVM issue while installing Eclipse
While installing Eclipse in windows, got one error like above and unable to proceed with the installation.
This video describes how to successfully install Eclipse.
How to solve incompa…