Replace a string in a file using java

You should do something like this:. How are we doing? Please help us improve Stack Overflow. Take our short survey. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. Find and replace words in a text file using Java Ask Question.

Asked 6 years, 10 months ago. Active 5 months ago. Viewed 39k times. Improve this question. Ranjul Arumadi 1 1 gold badge 1 1 silver badge 10 10 bronze badges. How to find most repeated word in a text file in java? How to list all files in a directory in java? How to read and write images in java? Hello sir, this is amazing website and very useful for Core Java concepts.

This method works if the file size is small. How would u copy file when the size is more than the buffer size.

Use StringBuilder. I would want to replace text by position. Collectors; import java. Jafar Karuthedath Jafar Karuthedath 1, 22 22 silver badges 17 17 bronze badges. Sign up or log in Sign up using Google.

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New post summary designs on greatest hits now, everywhere else eventually. Linked 0. Related Computer Graphics. Software Engineering. Web Technology. Cyber Security. C Programming. Control System. Data Mining. Data Warehouse. Javatpoint Services JavaTpoint offers too many high quality services. Signature There are two types of replace methods in Java String class. Parameters oldChar : old character newChar : new character target : target sequence of characters replacement : replacement sequence of characters Returns replaced string Exception Throws NullPointerException: if the replacement or target is equal to null.