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public static void main(String[] args) {
String regex = "(?i)\\b(\\w+)\\b(?:\\s+\\1)+\\b";
Pattern p = Pattern.compile(regex);
Scanner in = new Scanner(System.in);
int numSentences = Integer.parseInt(in.nextLine());
while (numSentences-- > 0) {
String input = in.nextLine();
Matcher m = p.matcher(input);
// Check for subsequences of input that match the compiled pattern
while (m.find()) {
input = input.replaceAll(regex, "$1");
}
// Prints the modified sentence.
System.out.println(input);
}
in.close();
}
}
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Java Regex 2 - Duplicate Words
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import java.util.Scanner; import java.util.regex.Matcher; import java.util.regex.Pattern;
public class DuplicateWords {
}