Final Class A {}, so that the defined Class A is the final class, the final class cannot be inherited, that is, the code cannot be written, class B extends a {}.final void B () {}, the method defined is the final method, and the final method cannot
Java final method and javafinal Method
The final method may be used for two reasons. The first is to lock the method to prevent any inheritance class from changing its original meaning. When designing a program, you can do this if you want the
Final---Used for classes, methods, and before.
The final class---cannot be inherited.
The final method---not be overwritten.
The final class cannot be inherited.If we do not want a class to be inherited, we use final to modify the class. This class
Lucene3.6.1 ikanalyzer2012 is used to run a good program, which appears on ipve4.1.0.
Java. lang. verifyerror: Class Org. wltea. analyzer. lucene. ikanalyzer overrides final method tokenstream. (ljava/lang/string; ljava/IO/reader;)
If we do not want a class to be inherited, we use final to modify the class. This class cannot be inherited. Final --- used before classes and methods.
Final Class --- cannot be inherited.
Final method --- cannot be overwritten.
The final class
If we do not want a class to be inherited, we use final to modify the class. This class cannot be inherited. Final --- used before classes and methods.
Final Class --- cannot be inherited.
Final method --- cannot be overwritten.
The final class
If we do not want a class to be inherited, we use final to modify the class. This class cannot be inherited. Final --- used before classes and methods.
Final Class --- cannot be inherited.
Final method --- cannot be overwritten.
The final class
Final---Used for classes, methods, and before.The final class---cannot be inherited.The final method---not be overwritten.If we do not want a class to be inherited, we use final to modify the class. This class will not be inherited.For example, we
Final --- used before classes and methods.
Final class --- cannot be inherited.
Final method --- cannot be overwritten.
The final class cannot be inherited. If we do not want a class to be inherited, we use final to modify the class. This class
Final---used before classes, methods.
The final class---cannot be inherited.
The final method---cannot be overwritten.
The final class cannot be inherited.If we do not want a class to be inherited, we use final to modify the class. This class will
Do not replicate this method to subclasses. You already know that this method provides functionality that satisfies your requirements, does not need to be extended, and does not allow any class that inherits from this class to overwrite this method,
Final---Used for classes, methods, and before.
The final class---cannot be inherited.
The final method---not be overwritten.
The final class cannot be inherited.
If we do not want a class to be inherited, we use final to modify the class. This class
Declaring a method as final there are two reasons:The first is that you already know that the functionality provided by this method already satisfies your requirements, does not need to be extended, and does not allow any class that inherits from
The final method may be used for two reasons. The first is to "lock" the method to prevent any inherited class from changing its original meaning. When designing a program, you can do this if you want the behavior of a method to remain unchanged
1. Do not want to let others modify the method implementation.2. Use inline invocation when method calls.3. A valid "off" dynamic binding so that the compiler can generate more efficient code for final method calls.Java programming Idea: "However,
The error details are as follows::
[6/27/13 15: 54: 49: 679 CST] 00000043 systemout o error-An error occurred while obtaining the instance of the specified object [appendixmgr! Check the configuration file! -Com. TRS. dreamfactory. createobjectbyid (
Connect hbase server with Java code error:Java.lang.VerifyError:class org.apache.hadoop.hdfs.protocol.proto.clientnamenodeprotocolprotos$ Appendrequestproto overrides final method Getunknownfields. () Lcom/google/protobuf/unknownfieldset;There are
/*Class baseclass {Public Function Test (){Echo "baseclass: Test () called/N ";}
Final public function moretesting (){Echo "baseclass: moretesting () called/N ";}}
Class childclass extends baseclass {the base class contains a final method. It is
First of all:Open a terminal, enter LSUSB, you will see all USB devices currently connected to the computer, such as:Bus 002 Device 003:id 046d:c06a Logitech, Inc.Bus 002 Device 010:id 17ef:7533 LenovoThe second one is my connected Lenovo
Inner classes usually contain callbacks, and the function that references that anonymous inner class is gone, so the inner class references the outside local variable to be final, so that the variable is found when the callback is made, and if the
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.