SUN

SUN CERTIFIED JAVA PROGRAMMER FOR JAVA2 PLATFORM 1.4

Index

Entity	Declaration Context	Accessib-ility Modifiers	Enclosing Instance	Direct Access to Enclosing Context	Declarations in Entity Body
Top-Level Class (or Interface)	Package	Public or default	No	N/A	All that are valid in a class (or interface) body
Static Member Class (or Interface)¹²	As static member of enclosing class or interface	All	No	Static members in enclosing context	All that are valid in a class (or interface) body
Non-static Member Class¹³	As non-static member of enclosing class or interface	All	Yes	All members in enclosing context	Only non-static declarations + final static fields
Local Class¹⁴	In block with non-static context	None	Yes	All members in enclosing context + final local variables	Only non-static declarations + final static fields
Local Class¹⁴	In block with static context	None	No	Static members in enclosing context + final local variables	Only non-static declarations + final static fields
Anonymous Class	As expression in non-static context	None	Yes	All members in enclosing context + final local variables	Only non-static declarations + final static fields
Anonymous Class	As expression in static context	None	No	Static members in enclosing context + final local variables	Only non-static declarations + final static fields

class TLC { //Top Level Class
static class SMC {} //Static Member Class
interface SMI {} //Static Member Interface
class NSMC {} //Non-static Member Class
void nsm() {
class NSLC {} //Non-static Local Class
}
static void sm() {
class SLC {} //Static Local Class
}
SMC nsf = new SMC () {}; //Anonymous non-static
static SMI sf = new SMI() {}; //Anonymous Static
}
The expression
<enclosing class name>.this
evaluates to a reference that denotes the enclosing object (ie. of class <enclosing class name>) of current instance of non-static member class.
In the Anonymous class, SMC is not the name of the Anonymous class but the name of the class that you are extending or the interface you are implementing.