Fix syntax errors

CrackingTheCodingInterview/Chapter1ArraysAndStrings/IsUniqueChars.java

@@ -1,15 +1,15 @@
 //Implement an algorithm to determine if a string has all unique characters. What if you cannot use additional data structures?
 
-public class isUniqueChars {
+public class IsUniqueChars {
     public boolean isUniqueChars(String str) {
         int checker = 0;
         for(int i = 0; i < str.length(); i++) {
             int val = str.charAt(i) - 'a';
             if((checker & (1 << val)) > 0) {
                 return false;
             }
-            checker |= (1 << val));
+            checker |= (1 << val);
         }
         return true;
     }
-}
+}

CrackingTheCodingInterview/Chapter3StacksAndQueues/SortStack.java

@@ -11,8 +11,8 @@ public static Stack<Integer> sort(Stack<Integer> s) {
 			while(!r.isEmpty() && r.peek() > tmp) { //step 2
 				s.push(r.pop());
 			}
-			r.push(tmp) //step 3
+			r.push(tmp); //step 3
 		}
 		return r;
 	}
-}
+}

CrackingTheCodingInterview/Chapter3StacksAndQueues/TowersOfHanoi.java

@@ -39,7 +39,7 @@ public void add(int d) {
 			System.out.println("Error placing disk " + d);
 		}
 		else {
-			disks.push(d):
+			disks.push(d);
 		}
 	}
 
@@ -56,4 +56,4 @@ public void moveDisks(int n, Tower destination, Tower buffer) {
 			buffer.moveDisks(n - 1, destination, this);
 		}
 	}
-}
+}