Replace word in file java

We are not taking any inputs from the user. For example, if the file contain one string This is a new ball. Now, if the above program runs, it will modify the file as below :.

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BootStrap tutorials. Android tutorials. React Native tutorials. Kotlin tutorials. Step 5 : Replace all the occurrences of oldString with newString using replaceAll method. You will get a newContent. The below program takes StudentFile. How to sort text file in java? How to compare two text files in java? 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. Although you can shift bytes and if necessary truncate the RandomAccessFile, originally it only allows replacing bytes with the same number of bytes.

It shouldn't be used for replacing characters at all because of encodings. That's why I posted the "editing an existing file" FAQ, because that's a better solution. David Newton. Hi, I have tried the following code to write the word in the xml file. But this code inserts the line in the file next to the existing line.

But how can i delete the existing line? Ulf Dittmer. Thank you for your advise. To use DOM, should I download any jar file? I am not aware of DOM. Please assist me any samples or link to continue. The XmlFaq contains links to numerous articles that should get you started. Consider Paul's rocket mass heater.