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import java.io.*;

class HuffmanDecoder {

static public void main (String args[]) {

String fileName = "";

HuffmanCoding Htree = new HuffmanCoding();

RandomAccessFile fIn;

InputStreamReader isr = new InputStreamReader(System.in);

BufferedReader buffer = new BufferedReader(isr);

try {

if (args.length == 0) {

System.out.print("Enter a file name: ");

fileName = buffer.readLine();

fIn = new RandomAccessFile(fileName,"r");

}

else {

fIn = new RandomAccessFile(args[0],"r");

fileName = args[0];

}

Htree.decompressFile(fileName,fIn);

fIn.close();

} catch(IOException io) {

System.err.println("Cannot open " + fileName);

}

}

}