Reading the SAM file with Java?

Question

I want to be able to extract the LM hashes of window passwords within the SAM password file. When i open the SAM file in java using random access file i cant read a word. If i open the SAM using textpad, i can make out some ASCII words, but i couldnt find something resembling 34-E3-A2...... etc

how can i do this? Please dont say Ophcrack, as im trying to write this myself

thanks