Java in a Nutshell, 5th Edition [Electronic resources] نسخه متنی

Every
Java class file contains a version number that specifies the version
of the class file format. This error is thrown when the Java Virtual
Machine attempts to read a class file with a version number it does
not support.

Figure 10-70. java.lang.UnsupportedClassVersionError

public class

UnsupportedClassVersionError extends ClassFormatError {
// Public Constructors
public

UnsupportedClassVersionError ( );
public

UnsupportedClassVersionError (String

s );
}