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import?java.util.*;

public?class?CountTokensDemo??{

????public?static?void??main（String[]??args）?{

	String?line?=?“this?isatest“;
	StringTokenizer?st?=?new?StringTokenizer（line?“?“）;?//?the?second?para?is?a?string.?

	//String?str?=?null;???????//?this?is?a?null?string?will?print?null
	String?str?=?““;	//?this?is?a?empty?string
	//String?str;?		//?this?will?not?compile

	int?count?=?0;
	while?（st.countTokens（）?!=0?）?{??//?counTokens（）?decrease?the?count?
					//each?time?nextTokens（）?is?called

		str?=?str?+?st.nextToken（）;??//?programm?will?hange?if?we?
						//comment?out?this?line.
		count++;
	}?

	System.out.println（str?+?“?“?+?count）;
????}
}
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