anonymous inner class in java

Optimizing Java 1.1 simplifies the implementation of some practical structures by modifying the Java language Specification. Among those modifications, the most striking is the internal class and the anonymous class. If used properly, they can make the program easier to unde

following points:1 . When using anonymous inner classes, we must inherit a class or implement an interface, but both cannot be combined, and can inherit only one class or implement an interface.2 . The constructor cannot be defined in an anonymous inner class.3 . No static

= ts.getslip (); } } public void Track () {internaltracking (true);} public static void Main (string[] args) { Goods2 g= new Goods2 (); G.track (); } You cannot create an object of this inner class outside of if, because it is beyond its scope. At compile time, however, the inner class Trackingslip is compiled at the same time as the other classes, except that it is inva

implementation of an interface or implementation of a class. because the anonymous inner class is a local inner class, all the restrictions on the local inner class are applied to it. Internal classes can only access static variables or static methods of external classes

. java: 80) This line of log, baseactivity $1. onclick indicates an anonymous internal class, such as onclick;Call this in The onclick method. getclass () is not the current class, but an anonymous internal class, similar to basea

The concept of anonymous objects　　an anonymous object is a statement that creates an object, but does not assign an object address value to a variable .such as: A class that already exists:public class person{public void Eat () {System.out.println ();}}Create a Normal objectPerson p = new person ();Create an

Java generic deep-Dive: Set utility examples of various Set generics deep-dive, applying anonymous internal classes and internal classes to generics // Sets. javapackage org. rui. generics. set; import java. util. hashSet; import java. util. set;/*** a Set utility * @ author lenovo **/public

. Technically, anonymous classes can be considered non-static internal classes, so they have the same permissions and restrictions as non-static internal classes declared in the method. Suppose that the task needs an object, but it is not worth creating a new object (the reason may be that the required class is too simple, or because it is only used within a method ), a