What's the C# equivalent of Java CharSequence type?

Question

I'm working on converting a Java project to C#, but don't know what CharSequence is corresponding to C# type.

What do you need from `CharSequence` you can't get from `string` or what kind of parameter do you want to support/accept in your methods/code? — Progman, Sep 10 '18 at 20:50
You want a similar interface in C# for `CharSequence` interface in Java? — Bouke, Sep 10 '18 at 21:00

score 3 · Accepted Answer · answered Sep 10 '18 at 21:08

There is no direct equivalent in c#. Use string instead.

The Java CharSequence is a simple abstraction, that allows methods with simple needs to accept a String, CharBuffer, Segment, StringBuffer, or StringBuilder without having to convert the others to String first.

It allows minor performance improvement in Java for some API methods.

score 0 · Answer 2 · answered Sep 10 '18 at 21:07

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CharSequence is an interface that represents a sequence of characters. To hold char array, string (immutable) or StringBuilder classes can be used in c#.

answered Sep 10 '18 at 21:07

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score 0 · Answer 3 · answered Sep 10 '18 at 21:26

A CharSequence is a sequence of characters which is implemented by StringBuilder, StringBuffer, String.

The closest to CharSequence in C# is:

char[] charArr = sentence.ToCharArray();

Strings are immutable in Java and C#. There is no mutable CharSequence in C#.

A CharSequence is basically a bridge between String and StringBuilder in Java.

C# being the best language doesnt suffer from identity crisis.

You are better off using String or StringBuilder in C#.

What's the C# equivalent of Java CharSequence type?

3 Answers3