查找Set中重复的元素
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2022-07-12 09:28:03
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import java.util.HashSet;
import java.util.Set;
public class FindDuplicateWords {
public static void main(String[] args) {
// TODO Auto-generated method stub
Set<String> uniques = new HashSet<String>();
Set<String> dups = new HashSet<String>();
for (String a : args)
if (!uniques.add(a))
dups.add(a);
// Destructive set-difference
uniques.removeAll(dups);
System.out.println("Unique words: " + uniques);
System.out.println("Duplicate words: " + dups);
}
}
Console:
Unique words: []
Duplicate words: []
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