Java PrintWriter

PrintWriter is a class in Java that is used for writing text in readable form. It is a part of the java.io package and provides convenient methods for writing different types of data (like strings, numbers, or objects) to a file or another output stream in a human-readable, formatted way.

Syntax

PrintWriter writer = new PrintWriter(new File(file_name));
writer.println(text);
writer.close();

• writer: The PrintWriter to be used for writing text.
• file_name: The file to which the text is to be written. If it does not exist, then a new file is created.
• text: The text to be written to the file.

Example

The below example shows how to use the PrintWriter class:

import java.io.File;
import java.io.PrintWriter;
import java.io.FileNotFoundException;

public class Example {
  public static void main(String[] args) {
    try {
      PrintWriter writer = new PrintWriter(new File("output.txt"));
      writer.println("Hello, world!");
      writer.close();
    } catch (FileNotFoundException e) {
      e.printStackTrace();
    }
  }
}

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Note: The usage of the try-catch method while performing file operations using the PrintWriter or any other class is essential to handle potential errors gracefully, ensure resources are properly managed, and provide a better user experience.