How can i remove a key and its value from properties file

hi all,
i want remove a particular key and associated value from the
properties file. is their any standard way of doing?
thanks inadvance
daya

hi,
thanks
i am able to remove the key,
one more question how can avoid storing date and time
in properties file.
thanks
daya

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Json
4588
51
{ "key": "1/0/234", "element1":{ "a":10 "b": "test1" } }
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How can i remove a key and its value from properties file

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