How to hide the text in the picture using the least significant bit? [closed]

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How to hide the text in the picture using the least significant bit ?

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It looks like you're not sure what you're asking. Perhaps go and research the general idea of steganography.

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Short answer: don't. Slightly longer answer: it's a very inefficient form of steganography, it won't work for JPEG images, and for GIF/PNG it'll basically make your image uncompressable.

If you need stega for anything else but curiosity or school assignments, research existing offerings.

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The technique you're thinking of is called Steganography. Here's a good post which explains the technique. http://www.dreamincode.net/forums/topic/27950-steganography/