filereader读取文件

FileReader is a class in Java that enables us to read data from a file. It is commonly used in applications where reading and processing data from a file is required. Below is an example of how to use FileReader to read a file and write a 1000-word essay.

```java import java.io.FileReader; import java.io.IOException;

public class Main {

public static void main(String[] args) { try { // Create a new FileReader object with the file path FileReader reader = new FileReader("sample.txt");

// Create a buffer to read data from the file char[] buffer = new char[1000]; int charRead;

StringBuilder content = new StringBuilder();

// Read data from the file until the end is reached while ((charRead = reader.read(buffer)) != -1) { // Append the read data to a StringBuilder content.append(buffer, 0, charRead); }

// Close the reader reader.close();

// Print out the content of the file System.out.println(content.toString());

// Write a 1000-word essay based on the content of the file String essay = generateEssay(content.toString());

// Print out the essay System.out.println(essay);

} catch (IOException e) { e.printStackTrace(); } }

public static String generateEssay(String content) { // Your logic to generate a 1000-word essay based on the content // For simplicity, we will just return the content itself return content; } } ```

In the above code, we first create a FileReader object and open the file "sample.txt" for reading. We then read the contents of the file and store them in a StringBuilder. Next, we generate a 1000-word essay based on the content of the file using the `generateEssay` method. Finally, we print out the content of the file and the generated essay.

Please note that the `generateEssay` method in this example is a placeholder and you may need to implement your own logic to generate a meaningful essay based on the content of the file.