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public class Test {
public static void main(String[] args) {
for (int i = 0; i < args.length; i++) {
System.out.println(args[i].length() + ":" + args[i]);
}
}
}

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2:aa
4:b bb
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import java.util.HashMap;
import java.util.Map;
import java.util.regex.Pattern;
public class RegexUtil {
private static Pattern PATTERN_EMAIL = Pattern
.compile("^[\\w-]+(\\.[\\w-]+)*@[\\w-]+(\\.[\\w-]+)+$");// ÓʼþµØÖ·
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