Save image metadata into local Java attributes

[meiaIM]

Hi,

I can print image metadata with identify command (-verbose, -format....) but I don't know how to SAVE its values into fields that I have created in order to make different operations with them later.
I'm using Java to call ImageMagick from cmd commands. I Know that I could use JMagick (ex : getDimension().getHeight()) but I cannot use JMagick, I have to do it calling directly cmd commands.
Does anyone know how to do it in Java?

Many Thanks in advance.