Break and Fall-Through in switch Blocks : switch « Statements « SCJP

1. SCJP
2. Statements
3. switch

case constants are evaluated from the top down
the first case constant that matches the switch's expression is the execution entry point.
once a case constant is matched, the JVM will execute the associated code block and subsequent code. 

enum Color {red, green, blue}

public class MainClass{
  public static void main(String [] args) {
    Color c = Color.green;
    switch(c) {
      case red: System.out.print("red ");
      case green: System.out.print("green ");
      case blue: System.out.print("blue ");
      default: System.out.println("done");
    }
  }
}

green blue done