What is the IComparer interface in Java?
The IComparer interface defines a comparison method that a value type or class implements to order or sort its instances. This interface is used with the List.Sort and List.BinarySearch methods.
How to compare strings in C?
Comparing strings requires a special function; do not use != or ==. Steps. There are two functions that allow you to compare strings in C. Both of these functions are included in the library. strcmp() – This function compares two strings and returns the comparative difference in the number of characters.
How does the stringcomparer class work?
The StringComparer class is declared abstract ( MustInherit in Visual Basic), which means its members can be invoked only on an object of a class derived from the StringComparer class.
What is this stringcomparer contradiction?
The contradiction is that each property of the StringComparer class is declared static ( Shared in Visual Basic), which means the property can be invoked without first creating a derived class.
How do I use IComparer with sort method?
Perhaps your best option is to use the overload of the Sort method that takes in a Comparison object, which is just a delegate that compares two objects: If you really want to use IComparer, then you need to make a class that implements IComparer : And then use that for the Sort method.
Is it recommended to derive’from comparer instead of implementing IComparer?
It is recommended to derive ‘ from Comparer instead of implementing IComparer . Public Class BoxComp Implements IComparer (Of Box) ‘ Compares by Height, Length, and Width.
How do I use IComparer with employee?
If you really want to use IComparer, then you need to make a class that implements IComparer : And then use that for the Sort method. You could also make Employee itself implement IComparer if you so desired, but that is strange, since then it could really just implement IComparable. Not the answer you’re looking for?