javamatrixjama

Inability to write import for Jama in java


Tried to implement the example but I got the error in the title http://math.nist.gov/javanumerics/jama/doc/Jama/Matrix.html

I'm just wondering how do I write the import for it. I haven't found anything online. Thanks


Solution

  • In every Javadoc page, at the top, you have the name of the class, including its full path, which is what you should import.

    For example, let's look at the well-known ArrayList class from the Java standard library. If you look at its Javadoc, you'll see:

    java.lang.Object
        java.util.AbstractCollection<E>
            java.util.AbstractList<E>
                java.util.ArrayList<E>
    

    By looking at the last line, you know you have to import java.util.ArrayList (generic type designators are not included in the import).

    So now look at the Javadoc you gave us. It's a bit confusing, because ironically, the National Institute of Standards and Technology is not using the proper language conventions (the name of the package should have been gov.nist.jama or something like that, certainly not something that begins with a capital letter).

    Nevertheless, the Javadoc states:

    java.lang.Object
      └╴Jama.Matrix
    

    So your import should be Jama.Matrix.