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String to byte[] Help needed- Urgent

 
Greenhorn
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I am encrypting a string to a byte array using a jar package available on net. I am passing that byte array(it is like [B23u7sd3 ) as querystring to a link. In that page I am getting this byte array as String(same value i.e [B23u7sd3 ). I want to type cast it to byte array which should have the same value(i.e [B23u7sd3 ). Because I have to pass the value to a method to decrypt it to actual string value. The method accepts only byte array. Please help me.
 
Rancher
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Use String.getBytes()
Dave.
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