Resolve error: Class names, 'className', are only accepted if annotation processing is explicitly requested

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In this java tutorial we will solve error: Class names, 'className', are only accepted if annotation processing is explicitly requested


Contents of page >
  • 1) Why error: Class names, ‘className’, are only accepted if annotation processing is explicitly requested occurs>
  • 2) First create below java program in E:\MyJavaProgram.java>
  • 3) Let’s try to create class file of above program using CMD, Go to CMD, and try to compile java file by typing below command to produce error: Class names, ‘className’, are only accepted if annotation processing is explicitly requested >
    • Way 1 to produce error: Class names, ‘className’, are only accepted if annotation processing is explicitly requested >
    • Way 2 to produce error: Class names, ‘className’, are only accepted if annotation processing is explicitly requested >
    • Way 3 to produce error: Class names, ‘className’, are only accepted if annotation processing is explicitly requested >
    • Way 4 to produce error: Class names, ‘className’, are only accepted if annotation processing is explicitly requested >
  • 4) For solving this error: Class names, 'className', are only accepted if annotation processing is explicitly requested


1) Why error: Class names, ‘className’, are only accepted if annotation processing is explicitly requested occurs>
  • Extension .java was missing during compilation of java file.
  • .Java was used, J was capital, it should have been .java during compilation of java file.
  • jav was used, it should have been .java
  • class name used was incorrect during compilation of java file.

Now let’s discuss all above ways in detail.


2) First create below java program in E:\MyJavaProgram.java>
public class MyJavaProgram{
public static void main(String[] args) {
     System.out.println("This is MyClass");
}
}



3) Let’s try to create class file of above program using CMD, Go to CMD, and try to compile java file by typing  below command to produce error: Class names, ‘className’, are only accepted if annotation processing is explicitly requested >

Way 1 to produce error: Class names, ‘className’, are only accepted if annotation processing is explicitly requested >
E:\>javac MyJavaProgram
error: Class names, 'MyJavaProgram', are only accepted if annotation processing is explicitly requested
1 error

Reason of error :
Extension .java was missing.

Way 2 to produce error: Class names, ‘className’, are only accepted if annotation processing is explicitly requested >
E:\>javac MyJavaProgram.Java
error: Class names, 'MyJavaProgram.Java', are only accepted if annotation processing is explicitly requested
1 error


Reason of error :
.Java was used, J was capital, it should have been .java

Way 3 to produce error: Class names, ‘className’, are only accepted if annotation processing is explicitly requested >
E:\>javac MyJavaProgram.jav
error: Class names, 'MyJavaProgram.jav', are only accepted if annotation processing is explicitly requested
1 error

Reason of error :
.jav was used, it should have been .java


Way 4 to produce error: Class names, ‘className’, are only accepted if annotation processing is explicitly requested >
E:\>javac MyJavaProg
error: Class names, 'MyJavaProg', are only accepted if annotation processing is explicitly requested
1 error


Reason of error :
class name used was incorrect (it should have been MyJavaProgram)
And
.java was missing






4) For solving this error: Class names, 'className', are only accepted if annotation processing is explicitly requested

E:\>javac MyJavaProgram.java
E:\>

And problem is resolved, class file is created in E:\MyJavaProgram.class


Summary >
In this core java tutorial we read why error: Class names, 'className', are only accepted if annotation processing is explicitly requested occurs, how to reproduce it. And solved it.


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