Program to read data from keyboard and write it to the file using FileOutputStream in Java

// Program to read data from keyboard and write it to the file using FileOutputStream.
import java.io.*;
class FileOutputStreamDemo
{
public static void main( String args[ ] ) throws 
    IOException
{
 // attach keyboard to DataInputStream
 DataInputStream dis = new DataInputStream( System.in );
 
 // attach file to FileOutputStream
 FileOutputStream fos = new FileOutputStream( "file1.txt" );
 
 System.out.println("Enter string($ to end): ");
 char ch;
 
 // read character from dis into ch and write them into fos.
 while( (ch=(char)dis.read()) != '$' )
 {
  fos.write(ch);
 }
 
 // close the file.
 fos.close();
}
}

Output:
Enter string($ to end): 
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