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FindDups.java
import java.util.*;
public class FindDups {
public static void main(String args[]) {
Set s = new HashSet();
for (int i=0; i<args.length; i++)
if (!s.add(args[i])){
System.out.println("Áߺ¹µÈ ±ÛÀÚ: " + args[i]);
}
System.out.println("»ç¿ëµÈ ±ÛÀÚµé: " + s + " " + s.size() + "°³");
}
}
D:\java\util\>javac FindDups.java
D:\java\util\>java FindDups a b c c d a e b
Áߺ¹µÈ ±ÛÀÚ: c
Áߺ¹µÈ ±ÛÀÚ: a
Áߺ¹µÈ ±ÛÀÚ: b
»ç¿ëµÈ ±ÛÀÚµé: [b, a, e, d, c] 5°³
Áߺ¹±ÛÀÚ ÆÇº°°ú »ç¿ë±ÛÀÚ ¼ö ¾Ë¾Æ³»±â
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