Contents

  1. ./FindDuplicates.java

./FindDuplicates.java

package examples;

import java.util.HashSet;
import java.util.Set;

/**
 * From the array of command-line arguments, identify the duplicates
 * 
 * @author CS209
 * 
 */
public class FindDuplicates {

	/**
	 * 
	 * @param args
	 */
	public static void main(String args[]) {
		Set<String> argSet = new HashSet<String>();
		for(int i=0; i < args.length; i++ ) {
			// try to add argument to set
			if( ! argSet.add(args[i]) ) {
				System.out.println("Duplicate: " + args[i]);
			}
		}
		System.out.println(argSet.size() + " unique words: " + argSet);
	}

}

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