how to install cldc/midp to phone without them?

I'm a Java developer new to mobile java, working on a totally new project which is at the stage of deciding what phones to use and purchase for testing. I understand the concept of cldc/midp as a standard cross-phone platform but have the following very basic question: can you (or how do you) install these prereq's on a phone that doesn't have them initially when purchased? Is this a problem or a non-issue (perhaps you just load them as with Java jdk onto a desktop)?

[481 byte] By [dbmi_cua] at [2007-10-3 4:48:16]