What is filewriter in java?

[Aloke]

Hi,
I am computer science student. I recently started learning java language. When I reading java book there is "filewriter" concept I unable to understand. So if you have any knowledge about this please help me.

[Praetor]

It is a type of class. Filewriter creates a new file and give you chance to write into that file.
Following is the summary of construction:
FileWriter(File newfile)
This creates FileWriter object.It is not useful as compared to PrintWriter class.

[Katty]

FileWriter class extends the OutputStreamWriter. It is one of the user friendly class for writing character in the file. This class accept character encoding. FileWriter class also accepts byte-buffer size. For this construction you have to create OutputStreamWriter for FileOutputStream. FileWriter is usually made for writing characters using streams.

[kelfro]

Following is the example of filewriter:

// Demonstrate FileWriter.
import java.io.*;
class FileWriter {
public static void main(String args[]) throws Exception {
String s = "Day after tomorrow\\n"
+ " all world will destroy\\n"
+ " and no one live";
char b[] = new char[s.length()];
source.getChars(0, s.length(), b, 0);
FileWriter F0 = new FileWriter("file1.txt");
for (int p=0; p < b.length; p += 2) {
F0.write(b[p]);
}
f0.close();
FileWriter F1 = new FileWriter("file2.txt");
F1.write(b);
F1.close();
FileWriter F2 = new FileWriter("file3.txt");
F2.write(b,b.lengthbuffer.
length/4,b.length/4);
F2.close();
}
}

[Zecho]

import java.io.FileWriter;
import java.io.IOException;

public class MC {
  public static void main(String[] a1) {
    FileWriter w;
    try {
      w = new FileWriter("amol.txt");
      char c = 'Q';
      w.write(c);
      w.close();
    } catch (IOException e) {
     
      e.printStackTrace();
    }

  }
}