Updating a file java

The source code is compiled and tested in my dev environment.

Is it okay to read/search an updating text file without using a lock? I think there are ways to open a file for appending, and maybe using Random Access File you can remove / change certain parts of the file.I am writing an application that listens to comm port, retrieves and saves the data from port and system time of d data in ms at every second to a text file (a separate thread..Thread A). But honestly these days file data throughput is very very high (certainly 100s of megabytes / sec, maybe gigabytes / sec), but file latency (the time it takes for the HD to get to ...Hi i have a small problem and think i'm just not getting the correct syntax on one line of code. /** * Update CSV by row and column * * @param file To Update CSV file path to update e.g.basically, i can write into my csv file and find a specific record using string tokenizer but it is not updating/editing the specified cells of that record. D:\chetan\* @param replace Replacement for your cell value * @param row Row for which need to update * @param col Column for which you need to update * @throws IOException */ public static void update CSV(String file To Update, String replace, int row, int col) throws IOException call you're making returns a new string it does not modify the original string.I'm Nataraja Gootooru, programmer by profession and passionate about technologies.

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Statement.execute Update() method returns you number of records got updated.