FileWriter and FileReader class is used to for read and write from a text files. Bothclasses are character-oriented classes in file handling in java. If you working on textual information in the file then, it’s better approach.

FileWriter class:

In Java, FileWriter is a character stream to write data to a file. We used the constructer for creating a file.

For example, we create a file with the help of FileWriter constructor and put the string in the write() method directly.

    import java.io.*;  
    class FileWriterEx{  
     public static void main(String args[]){  
      try{  
       FileWriter fw=new FileWriter("FileWriter.txt"); 
       fw.write("My name is khan");  
      
fw.close();  
      }catch(Exception e){System.out.println(e);}  
     
System.out.println("Successfully Done!"); 
     } }

Output:

Successfully Done!

FileReader class:

In Java, FileReader is a character stream to read data from a file.
For example, we working with existing file with the help of FileReader constructor and read the data from its read () method.

    import java.io.*;  
    class FileReaderEx{  
     public static void main(String args[]){  
try{  
    FileReader fr=new FileReader("FileWriter.txt");  
  int i;  
  while((i=fr.read())!=-1)  
  System.out.print((char)i); 
  fr.close();  
  }catch(Exception e){System.out.println(e);}  }
   } 

Output:

My name is khan