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Copy pathOptionalItemsLesson.java
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29 lines (25 loc) · 920 Bytes
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package regexp;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class OptionalItemsLesson {
public static void main(String[] args) {
Pattern p = Pattern.compile("colou?r");
Matcher m = p.matcher("color colour");
while(m.find()) {
System.out.print(m.start() + " " + m.group() + " ");
}
System.out.println("");
Pattern p2 = Pattern.compile("Nov(ember)?");
Matcher m2 = p2.matcher("November Nov");
while(m2.find()) {
System.out.print(m2.start() + " " + m2.group() + " ");
}
System.out.println("");
Pattern p3 = Pattern.compile("Feb(ruary)? 23(rd)?");//??
Matcher m3 = p3.matcher("February 23rd, February 23, Feb 23rd, Feb 23");
while(m3.find()) {
System.out.print(m2.start() + " " + m3.group() + " ");
}
System.out.println("");
}
}