Java Study Notes 20 --- adding internal classes to member Internal classes (1), Study Notes 20 ---
In the previous article, note 19 briefly introduced the internal class, local internal class, and anonymous internal class of the member, and added
Java study notes 18 --- final keywords modify variables, methods, and classes, study notes 18 --- final
The word final in English is known as "final". In fact, it also means"Unchangeable". In Java,The final keyword is "unchangeable" to better
Java Memory Model-final, java model-final
Compared with the locks and volatile described earlier, the read and write operations on the final domain are more like common variable access. For final domains, the compiler and processor must follow two
In Java programming, we may sometimes hope that some data cannot be changed, and that this is where the final comes into play. Final is Java'soff The key word that it represents is that this part cannot be modified. There are two reasons why you don'
This example describes the final keyword usage in java. Share to everyone for your reference, specific as follows:
Depending on the context, the Java keyword Final also has a subtle distinction, but it usually means "this is immutable." "There are
When it comes to the final keyword, it's probably a lot of people who are not unfamiliar with the final keyword when using anonymous internal classes. In addition, the string class in Java is a final class, so today we'll look at the use of the
the application of this keyword in the Java languageApply one: Reference member variable Public class // defines a class whose name is student. Public // define a method, with the same name as the class, so it is a construction method This
Please read the following procedure:
public class hello{
public static void Main (string[] args) {//(1)
System.out.println ("hello,world!"); (2)
}
}
Read this program, for most of the learning Java from, are not unfamiliar. Even if you
Java static, this, super, final usage
I. Static
Take a look at the following program:
Public class Hello {Public static void main (string [] ARGs) {// (1)System. Out. println ("Hello, world! "); // (2)}}
I have read this program,
Question: Can the Java reflection mechanism dynamically modify the member variables of the final decoration in the instance?The answer is in two different cases.1. When the final modified member variable initializes the value at the time it is
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