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Reasons and solutions for java compilation errors that cannot find symbols

Release: 2019-12-14 14:27:20
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Reasons and solutions for java compilation errors that cannot find symbols

java Symbol not found during compilation:

Compile after the code is written ok: javac ServerSocket.java
An error occurs, as follows:

Reasons and solutions for java compilation errors that cannot find symbols

The complete code is as follows:

import java.net.*;
public class ServerSocket{
public static void main(String[] args){
ServerSocket ss = new ServerSocket(8888);
}
Copy after login

After careful observation several times, I found that there is no problem with the code, and the boot package is also normal. It just can't be compiled. I found on the Internet that someone said there was a problem with the java PATH environment variable configuration path, so I checked the path and entered the javac command and it was normal.

I suddenly discovered that the java file name and class name were both ServerSocket. Isn’t this the class name in the JDK? There was a conflict, so I changed the name and compiled it. Again, I would like to remind you: When naming Java, be sure to remember not to use the class name that already exists in the JDK. Especially when this class needs to be referenced in Java and has the same name as the created class, the above error will occur.

For more java knowledge, please pay attention to the java basic tutorial column.

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