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I'm unable to delete data in a file in java.I tried to take whole data in to a string and manipulate it and output the data to the file.But it is stated in the problem that...it should not be done in that way.could anyone help me out?? 
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I am building an apllication.In that i need to save a text typed in text area to a file.so when i open save dialog box and input a file name that is already present in the folder it prompts whether you want to replace the file or not.After answering "no" … 
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