GetClass () The classmate who has studied Python must be very familiar, is it a bit like __dict__ method? In fact, this introspection, called reflection in Java, can be understood to be almost identical to the operation of getting object type
First, let's give a question. What is the output result of the following program?
Java codeImport java. util. Date;Public class Test extends Date {Public static void main (String [] args ){New Test (). test ();}Public void test (){System. out.
1. In Servlet/filter and other servlet web environments, as long as the javax. servlet. servletcontext type is obtained, the path can be obtained through getrealpath. The top-level directory in the relative path can be obtained through the parameter.
Java Tour (ix)--object class, Equals,tostring,getclass, inner class access rule, static inner class, Inner class principle, anonymous inner class
Every day by some trivial harassment, learning to continue
I. Object class
What
The super. getClass method of Java interview questions is called. Today, I read a Java interview question from the Internet, and the result fell into the trap. I think this interview question is quite good, so I will share it with you! Let's take a
When comparing whether a class and another class belong to the same class instance, it is usually possible to use instanceof and getclass two methods to judge whether the two are equal, but there is a difference between the two in the judgment, the
When comparing whether a class belongs to the same class instance as another class, we can usually use instanceof and getclass two methods to judge whether the two are equal, but there is a difference between the two in the judgment, the following
When comparing whether a class belongs to the same class instance as another class, we can usually use instanceof and getclass two methods to judge whether the two are equal, but there is a difference between the two in judging, and the following is
In the Java program release, many people will choose to use binary jar format for publishing, how to read the resources inside the jar?The main use of ClassLoader the following several methods to achieve:Public URL getresource (String name);Public
One,
GetClass Method:Type: public final class getclass ()Function: Returns the Java.lang.Class object of the Run-time class of the object (interpretation on the API)There is a method type to know that the method can only be invoked by an instance
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