update

Task/Mad-Libs/Java/mad-libs.java

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+import java.util.Map;
+import java.util.HashMap;
+import java.util.Scanner;
+import java.util.StringTokenizer;
+
+public class MadLibs
+{
+	public static void main(String[] args)
+	{
+		Scanner s=new Scanner(System.in);
+		String line;
+		StringBuffer storybuffer=new StringBuffer();
+		
+		//Accept lines until empty line is entered
+		while(!(line=s.nextLine()).isEmpty())
+			storybuffer.append(" "+line);
+		
+		//Remove first space
+		storybuffer.delete(0, 1);
+		String story=storybuffer.toString();
+		//Split
+		StringTokenizer str=new StringTokenizer(story);
+		String word;
+		StringBuffer finalstory=new StringBuffer();
+		
+		//Store added elements
+		Map<String,String> hash=new HashMap<String,String>();
+		while(str.hasMoreTokens())
+		{
+			word=str.nextToken();
+			if(word.contains("<"))
+			{
+				String add="";
+				//Element prompt could be more than one word
+				if(!word.contains(">"))
+				{
+					//Build multi-word prompt
+					String phrase="";
+					do{
+						phrase+=word+" ";
+					}while(!(word=str.nextToken()).contains(">"));
+					word=phrase+word;
+				}
+				//Account for element placeholder being immediately followed by . or , or whatever.
+				if(word.charAt(word.length()-1)!='>')
+					add=word.substring(word.lastIndexOf('>')+1);
+				
+				//Store id of element in hash table
+				String id=word.substring(0,word.lastIndexOf('>')+1);
+				String value;
+				
+				if(!hash.containsKey(id))
+				{
+					//New element
+					System.out.println("Enter a "+ id);
+					value=s.nextLine()+add;
+					hash.put(id, value);
+				}
+				//Previously entered element
+				else
+					value=hash.get(id);
+				word=value;
+			}
+			finalstory.append(word+" ");
+		}
+		System.out.println(finalstory.toString());
+		s.close();
+	}
+}