User`s manual

Bringing Java Classes into MATLAB

5-9

•java.lang.String

•java.util.Enumeration

A fully qualified name can be rather long, making commands and functions,

such as constructors, cumbersome to edit and to read. You can refer to classes

by the class name alone (without a package name) if you, first, import the fully

qualified name into MATLAB.

The

import command has the following forms.

import pkg_name.* % Import all classes in package

import pkg_name1.* pkg_name2.* % Import multiple packages

import class_name % Import one class

import % Display current import list

L = import % Return current import list

MATLAB adds all classes that you import to a list called the import list. You

can see what classes are on that list by typing

import, without any arguments.

Your code can refer to any class on the list by class name alone.

When called from a function,

import adds the specified classes to the import

list in effect for that function. When invoked at the command prompt,

import

uses the base import list for your MATLAB environment.

For example, suppose a function contains the following statements.

import java.lang.String

import java.util.* java.awt.*

import java.util.Enumeration

Code that follows the import statements above can now refer to the String,

Frame, and Enumeration classes without using the package names.

str = String('hello'); % Create java.lang.String object

frm = Frame; % Create java.awt.Frame object

methods Enumeration % List java.util.Enumeration methods

To clear the list of imported Java classes, invoke the command

clear import