import java.io.*;
import java.util.Arrays;

public class Lab3 {
	/* edit and compile this, then run the program using the command line
	        java Lab3 filename.filetype
	   where filename.filetype is the name of your input file
	*/
	private ByteCount[] counters = new ByteCount[256];
	
	
	public static void main(String[] args) {
		// create 256 ByteCount objects, initialize them, and store their addresses in the counters array
		
		// get filename, open file for input, try to read the first byte of data
		
		/*
		    // put this in a try block, followed by a catch block to catch IOExceptions
		    while (not EOF) 
		       process the input byte
		       try to read the next byte of data
		    endwhile		
		*/
		
		// output the results, in order by byte value (0-255)
		// sort the data by frequency ... use Arrays.sort( )
		// output the results again, sorted by frequency with highest frequency first
		
	}
	
}


class ByteCount implements Comparable <ByteCount> {
	public int final charbyte;
	public int frequency;
      
	public ByteCount(int i) { 
		if (i >= 0 && i < 256 )  charbyte=i; else charbyte=0;
		frequency=0;
	}
      
	public int increment() {
		return ++frequency;
	}
     
	public int compareTo(ByteCount b) {
		if (this.frequency < b.frequency) return -1;
		else if (this.frequency > b.frequency) return 1;
		else return 0;
	}
     
	public String toString() {
		return "byte=" + ((Integer) charbyte).byteValue() + ":freq=" + frequency+"\t";
	}
}