Copy unsafely

README.md

@@ -1,4 +1,4 @@
-# TC-Concurrency
+-Concurrency
 
 ## Monkey Typewriter
 According to Wikipedia:

src/main/java/io/zipcoder/Copier.java

@@ -9,13 +9,17 @@ import java.util.Iterator;
 public abstract class Copier implements Runnable {
     // We use an iterator so each monkey / thread can copy an individual word.
     public Iterator<String> stringIterator;
-    public String copied;
+    protected StringBuffer buffer; // You want unsafe? Try using StringBuilder instead.
 
     public Copier(String toCopy) {
         // Take the input string, split it on spaces, turn that array to an arraylist, and then grab its iterator.
         this.stringIterator = Arrays.asList(toCopy.split(" ")).iterator();
-        this.copied = "";
+        buffer = new StringBuffer();
     }
 
     public abstract void run();
+
+    public String getCopy() {
+        return buffer.toString();
+    }
 }

src/main/java/io/zipcoder/MonkeyTypewriter.java

@@ -1,6 +1,8 @@
 package io.zipcoder;
 
 public class MonkeyTypewriter {
+    private static final int fMONKEYS = 5;
+
     public static void main(String[] args) {
         String introduction = "It was the best of times,\n" +
                 "it was the blurst of times,\n" +
@@ -23,16 +25,21 @@ public class MonkeyTypewriter {
         // Do all of the Monkey / Thread building here
         // For each Copier(one safe and one unsafe), create and start 5 monkeys copying the introduction to
         // A Tale Of Two Cities.
-
+        UnsafeCopier uc = new UnsafeCopier(introduction);
+        for (int i = 0; i < fMONKEYS; i++) {
+            Thread monkey = new Thread(uc);
+            monkey.start();
+        }
 
         // This wait is here because main is still a thread and we want the main method to print the finished copies
         // after enough time has passed.
         try {
             Thread.sleep(1000);
-        } catch(InterruptedException e) {
+        } catch (InterruptedException e) {
             System.out.println("MAIN INTERRUPTED");
         }
 
         // Print out the copied versions here.
+        System.out.println(uc.getCopy());
     }
 }

src/main/java/io/zipcoder/UnsafeCopier.java

@@ -10,5 +10,9 @@ public class UnsafeCopier extends Copier {
     }
 
     public void run() {
+        while (stringIterator.hasNext()) {
+            buffer.append(stringIterator.next());
+            buffer.append(" ");
+        }
     }
 }