Error class X is public should be declared in a file named X java

Question

I am trying to write a program  but I m getting this compiler error   Main java 1  error  class WeatherArray is public  should be declared in a file named WeatherArray java public class WeatherArray            1 error   I have checked my file names  and my public class is the same as my  java file   How can I fix this   Here is my code   public class WeatherArray       public static void main String   args

User · Answer

You named your file as Main java  name your file as WeatherArray java and compile

User · Answer

when you named your file WeatherArray java maybe you have another file on hard disk  so you can rename WeatherArray java as ReWeatherArray java  then rename ReWeatherArray java as WeatherArray java  it will be ok

User · Answer

I had the same problem but solved it when I realized that I didn t compile it with the correct casing  You may have been doing     javac Weatherarray java   when it should have been     javac WeatherArray java

User · Answer

The answer is quite simple  It lies in your admin rights  before compiling your java code you need to open the command prompt with run as administrator  then compile your code  no need to change anything in your code  the name of the class need to be the same as the name of the java file   that s it

User · Answer

From Ubuntu command line    WeatherArray java public class WeatherArray     public static void main String   args        System out println  quot     Hello World quot         ls  WeatherArray java  javac WeatherArray java ls  WeatherArray java  WeatherArray class  java WeatherArray      Hello World Of course if you name your java file with different name than WeatherArray  you need to take out public and it would be     Sunny java class WeatherArray      public static void main String   args          System out println  quot     Hello World quot          javac Sunny java  java WeatherArray

User · Answer

To avoid this error you should follow the following steps   1  You should make a new java class     2  Name that class     3  And a new java class is made

User · Answer

Name of public class must match the name of  java file in which it is placed  like public class Foo   must be placed in Foo java file   So either    rename your file from Main java to WeatherArray java rename the class from public class WeatherArray   to public class Main

User · Answer

I my case  I was using syncthing  It created a duplicate that I was not aware of and my compilation was failing

User · Answer

your file is named Main java where it should be      WeatherArray java

User · Answer

I encountered the same error once  It was really funny  I had created a backup of the  java file with different filename but the same class name  And kept on trying to build it till I checked all the files in my folder

User · Answer

The terminal is not case sensitive when writing  Javac  x  java   so make sure what you write in the terminal matches the filename and class name   My class name and file name were both  MainClass   but I was compiling using  Mainclass   Notice I forgot to make the  c  capital

User · Answer

The name of the public class within a file has to be the same as the name of that file    So if your file declares class WeatherArray  it needs to be named WeatherArray java

User · Answer

error example   public class MaainActivity extends Activity       Override   public void onCreate Bundle savedInstanceState        super onCreate savedInstanceState          Get the view from activity main xml     setContentView R layout activity main            correct example just make sure that you written correct name of activity that is main activity    public class MainActivity extends Activity        Override   public void onCreate Bundle savedInstanceState        super onCreate savedInstanceState          Get the view from activity main xml     setContentView R layout activity main

User · Answer

This happens when you have 1 name for the Java class on hard disk and another name of Java class in the code    For example  I renamed my MainActivity class to MainnActivity only     in the code  I got this error immediately   There is also a visual indicator in the Project tab of Android Studio - a class inside a class  like you have nested classed  but with an error indicator      The solution is to simply rename class name in the Project tab  SHIFT   F6  to match the name in the Java code

User · Answer

In my case  using IntelliJ  I copy and pasted and renamed the workspace  and I am still using the old path to compile the new project   In this case this particular error will happen too  if you have the same error you can check if you have done the similar things

[java] Error: class X is public should be declared in a file named X.java

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