I'm running XP. The Java compiler doesn't know where the classes are like when you use the import statement.
For example
import java.io.*;
import java.lang.*;
I get the following errors:
error J0051: Undefined package 'io'
error J0051: Undefined package 'lang'
I look up the error number and this is the explanation:
For example
import java.io.*;
import java.lang.*;
I get the following errors:
error J0051: Undefined package 'io'
error J0051: Undefined package 'lang'
I look up the error number and this is the explanation:
Code:
Compiler Error J0051
Undefined package 'identifier'
The compiler detected a package name, but was unable to locate the package definition.
This error most likely occurs when a syntactical error exists in an import statement.
This error may also occur when the package cannot be found.
The following sample illustrates this error:
import java.lang.String.*;
// error: 'String' not a valid package name
public class Simple {
// do something meaningful
}