Does this program fulfill Exercise 9-2 in K and B SCJP study guide?

[Ted North]

public class TestStringBuffersAndSync extends Thread { 
	
	
	static StringBuffer sbSync;
	static char c = 'a';
	
	public static void main(String[] args) { 
	// char c = 'a';
	 sbSync = new StringBuffer(c);
	
	
			TestStringBuffersAndSync t0 = new TestStringBuffersAndSync(sbSync);
			TestStringBuffersAndSync t1 = new TestStringBuffersAndSync(sbSync);
			TestStringBuffersAndSync t2 = new TestStringBuffersAndSync(sbSync);
			t0.setName("bill");
			t1.setName("ted");
			t2.setName("rufus");
			t0.start();
			t1.start();
			t2.start();
		} // end main
		
		// create constructor
		
		public TestStringBuffersAndSync(StringBuffer sb) {
		
			sbSync = sb;
		} // end constructor
		
		
		public void run() {
			// commenting out the synchronized block created 'race condition' and general mayhem
			synchronized(StringBuffer.class) {
				for (int x = 0; x < 3; ) { 
					int i = 10;
					while (i > 0) {
	
						sbSync.delete(0,1);
	
				System.out.println(sbSync.append(c) + " " + i + " " + Thread.currentThread().getName());
	
				i--;
				}
					c++;
					x++;
			}
				
			
	} // end synchronized block
			

 } // end run method
		
		
} // end whole tootin' class
	
	
	

	// TestStringBuffersAndSync

Requirements are:

1. create a class and extend the Thread class.
2. Override the run() method of Thread. This is where the synchronized block of code will go.
3. For our three thread objects to share the same object, we will need to create a constructor that accepts a StringBuffer object in the argument.
4. The synchronized block of code will obtain a lock on the StringBuffer object from step 3
5. Within the block, output the StringBuffer 100 times (i only output 10 times so i could read all the output in the shell) and then increment the letter in the StringBuffer. You can check
Chapter 6 for StringBuffer methods that will help with this.
6. Finally, in the main() method, create a single StringBuffer object using the letter A, then create three instances of our class and start all three of them (i also named the threads so the output makes more sense to me).

i humbly offer this hilarious picture for the end-users that would appreciate it; all others please do not look below this sentence.

[Ted North]

bump

- does no one have any thoughts on this?

- java_ranch its time to saddle up and un-holster that keyboard.