Java Error Messages and Solutions

When you invoke the private constructor of a class in another class, you’ll get the error message “The constructor ... is not visible”. An...

When you create a java.util.List object from an array using Arrays.asList method and after that if you try to clear or remove the elements ...

If you do not close the java.util.Scanner object after reading data, you can get an warning saying "Resource leak: 'scanner' i...

Java error "Dimensions expected after this token" or " '[' expected " can occur while creating array elements o...

The error message "Cannot invoke length() on the array type" or "cannot find symbol ... method length()" is related wit...

We may encounter this error message when we override a superclass method in the subclass with a wrong return type in the subclass method. To...

See the code below: import javax.swing.JFrame; import javax.swing.JButton; import java.awt.Container; import java.awt.FlowLayout; imp...

Java error "attempting to assign weaker access privileges" can happen when we override a superclass method in the subclass if the ...

Java error "modifier private not allowed here" can occur for any of the following reasons: 1. An outer class declared as private...

Are you using JPA and getting the error "Exception in thread "main" javax.persistence.PersistenceException: No Persistence pr...