format code

Author: maskleo

ch05/04_Legacy_Library_with_Generic_Client.md

@@ -78,15 +78,23 @@ interface Stack<E> {
 m/ArrayStack.java:
  @SuppressWarnings("unchecked")
  class ArrayStack<E> implements Stack<E> {
- private List list;
-	 public ArrayStack() { list = new ArrayList(); }
-	 public boolean empty() { return list.size() == 0; }
-	 public void push(E elt) { list.add(elt); } // unchecked call
+   private List list;
+	 public ArrayStack() { 
+	   list = new ArrayList(); 
+	 }
+	 public boolean empty() { 
+	   return list.size() == 0; 
+	 }
+	 public void push(E elt) { 
+	   list.add(elt); 
+	 } // unchecked call
 	 public E pop() {
- Object elt = list.remove(list.size()-1);
- return (E)elt; // unchecked cast
-}
-	public String toString() { return "stack"+list.toString(); }
+     Object elt = list.remove(list.size()-1);
+     return (E)elt; // unchecked cast
+   }
+	 public String toString() { 
+	   return "stack"+list.toString(); 
+	 }
 }
 
 m/Stacks.java: