C# learning notes- static

static

General concept

• Associated with the class, NOT an instance.

Static class

• A static class CANNOT be instantiated.
• Its members are accessed by the class name, instead of the instance name, like Math.PI.

Access Static members

• Static to static Only
• A static method can ONLY access static members.

Static constructor

To trigger the static constructor?

• Once per type, not per instance.
• One of the following two conditions:

// 1. the type is instantiated
public static void Main() {
  Forest f  = new Forest(); 
}
// 2. a static member is accessed
// Define() is a static method
public static void Main() {
  Forest.Define(); 
}