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A channel for a physical file

A channel for a physical file: provides an efficient mechanism for reading, writing, and manipulating the file. import java.io.File; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.nio.channels.FileChannel; public class MainClass {   public static void main(String[] a) {     File aFile = new File("C:/myFile.text");     FileOutputStream outputFile = null; // Place to store an output stream                                         // reference     try {       // Create the stream opened to write       outputFile = new FileOutputStream(aFile);     } catch (FileNotFoundException e) {       e.printStackTrace(System.err);       System.exit(1);     }     // Get the channel for the file     FileChannel outputChannel = outputFile.getChannel();   } }