C# Language Determine whether a string begins with a given sequence

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Example

string HelloWorld = "Hello World";
HelloWorld.StartsWith("Hello"); // true
HelloWorld.StartsWith("Foo"); // false

Finding a string within a string

Using the System.String.Contains you can find out if a particular string exists within a string. The method returns a boolean, true if the string exists else false.

string s = "Hello World";
bool stringExists = s.Contains("ello");  //stringExists =true as the string contains the substring 
Formatting a string