Question: I want to test if the `StringBuilder` is empty but there is no `IsEmpty` method or property.

How does one determine this?

Answer: 
use the `StringBuilder.Length` Property, here the [doc](https://msdn.microsoft.com/en-us/library/system.text.stringbuilder.length(v=vs.110).aspx)

```
if (mySB.Length > 0)
{
     Console.WriteLine("Bang! is not empty!"); 
}

```
Just use *Length*. Here is how to use it:

```
      // create a StringBuilder object
    // with a String pass as parameter
    StringBuilder
        str
        = new StringBuilder("Hello World");

    // print string
    System.out.println("String = "
                       + str.toString());

    // get length of StringBuilder object and initialize if you use it more than ones
    int length = str.length();

   // you can check like
   if(len != 0)
    // print length
    System.out.println("length of String = "
                       + length);

```