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Write a java program for reading and writing objects

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Join Stack Overflow to learn, share knowledge, and build your career. Connect and share knowledge within a single location that is structured and easy to search. I am trying to write objects in a file in java after serializing them. Currently, I am using writeObject method. Reading objects using readObject is always returning the first object. I am not sure whether this is the reason but I am not creating a new object every time I am writing to the file, I am just resetting the values of an existing object and calling writeObject obj.
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Reading from and Writing to a URLConnection

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Java FileReader Class - javatpoint

It means that a script executable file which is made of text in a programming language, is used to store and transfer the data. Python supports JSON through a built-in package called json. To use this feature, we import the json package in Python script. It is similar to the dictionary in Python.
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Program: How to store and read objects from a file?

Owning to the popularity and widespread use of CSV as a format for data transfer, there are many parser libraries that can be used along with Java. Third-party parsers define common formats and are able to work with various delimiters, handle special characters, and sometimes even read non-binary data. However, not all programs require all of those features, so it is still important to be able to handle CSV files with core Java, without the use of any additional libraries. Let's consider the steps to open a basic CSV file and parse the data it contains:. The data String array will contain a list of the fields in each row of the file found in the pathToCsv file location.
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December 05, Atta. In an earlier article , we looked at reading and writing different types of files in Java. In this short article, you will learn how to read and write binary files in Java. The following example demonstrates how you can use the FileInputStream class to read a binary file, one byte at a time without any buffering:.
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