How do I Save a String to a Text File in Java?

Saving a String to a Text File in Java

If you have a String variable containing text and need to store it in a file, Java offers a simple solution.

Creating a PrintWriter Object

To save the String to a text file, you first need to create a PrintWriter object:

PrintWriter out = new PrintWriter("filename.txt");

Writing the String

Once you have the PrintWriter object, you can use the println() method to write the String to the file:

out.println(text);

Closing the PrintWriter

After writing the String, you must close the PrintWriter object to ensure that the data is properly flushed to the file:

out.close();

Java 7 and Later: try-with-resources

For Java 7 and later, you can use the try-with-resources statement to automatically close the PrintWriter when you exit the block:

try (PrintWriter out = new PrintWriter("filename.txt")) {
    out.println(text);
}

Exception Handling

Note that when creating the PrintWriter, you may need to handle the java.io.FileNotFoundException, which is thrown if the file does not exist or cannot be created.

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