Java Error Messages and Solutions

The code below leads to an error "interface expected here" public interface MyInterface extends Thread { } Here an interface ...

Any Java code as below will lead an error "no interface expected here" import java.io.Serializable; public class Person extends...

public class Person extends Employee { private String firstName; private String lastName; public Person(String firstName,String lastName...

You see this error message because of any one of the followings: 1. You misspelled the keyword class (fully lower case) or you did not wri...

Very simple error ‘package system does not exist’- most probably you have used ‘err’ or ‘in’ or ‘out’ field of the ‘System’ class of ‘java....

This error message is shown when the statements are not written in proper place. Most often, mistakenly, we may write the processing task (f...

If a class file does not exist or the class is in such a package which is not in the CLASSPATH but you are trying to run that class, then yo...

We get error message "class [ClassName] is public, should be declared in a file named [ClassName].java" if the file name of the Ja...

The error 'reached end of file while parsing' occurs because of curly braces } problem. You have given either more or less curly bra...

If we put a ; (semicolon) after the method header (i.e., before starting the method body) when we are defining a concrete method (which meth...

“cannot find symbol” or “cannot resolve symbol” is the most common error message which the programmers get from the compiler. However this e...