How to save a string of 0's and 1's as bits

can any one help me with this
i have a string 000100011110101010
i have to save each 1 and 0 as bits

http://java.sun.com/j2se/1.5.0/docs/api/java/util/BitSet.html
Edit: Sorry originally posted the index, but wanted the class (like it is now).

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