Learn
We can prove that String
is a class by looking up the String
class documentation and trying some of the methods and properties listed there.
This example uses Length
and Contains()
.
string s = "Hello World"; Console.WriteLine(s.Length); Console.WriteLine(s.Contains("o"));
We’ve already seen one static
property Empty
and one static
method, IsNullOrEmpty()
:
string s = String.Empty; bool isEmpty = String.IsNullOrEmpty(s);
Instructions
1.
Let’s practice using Replace(String, String)
, which returns a new string with every instance of the first argument replaced by the second.
Replace all instances of "ollie"
with "ana"
.
If you’re unfamiliar with Replace()
, the documentation is your best friend.
Take this course for free
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