An example of closure in Java programming thought

An example of the idea of Java programming

 PackageInnerclass;Interfaceincrementable {voidincrement ();}/**be adjusted 1*///Very Simple to just implement the interfaceclassCallee1Implementsincrementable {Private inti = 0; @Override Public voidIncrement () {i++; System.out.println ("Callee1" +i); }}classmyincrement { Public voidincrement () {System.out.println ("Other Operation"); }    Static voidf (myincrement mi) {mi.increment (); }}//if your class must implement increment () in some//Inner classclassCallee2extendsMyincrementImplementsincrementable {Private inti = 0;  Public voidincrement () {Super. Increment (); I++; System.out.println ("Callee2:" +i); }    Private classClosureImplementsincrementable { Public voidincrement () {System.out.println ("Internal class implementation Interface");//1. I added this sentence. Callee2. This. increment ();//2. If you want to express a difference from an external class, why call the method of the external class to implement the same function, causing confusion}} incrementable getcallbackreference () {return NewClosure (); }}classCaller {Privateincrementable callbarckreference;  PublicCaller (incrementable ChB) {callbarckreference=ChB; }    voidGo () {callbarckreference.increment (); }} Public classCallbacks { Public Static voidMain (string[] args) {Callee1 C1=NewCallee1 (); Callee2 C2=NewCallee2 ();        MYINCREMENT.F (C2); Caller Caller1=NewCaller (C1); Caller Caller2=NewCaller (C2.getcallbackreference ());        Caller1.go ();        Caller1.go ();        Caller2.go ();    Caller2.go (); }}

An example of closure in Java programming thought