Add usage of reverse iteration to TestListIterator.java

Yalun Qin · Yalun Qin · commit d5211eca4f6d · 2017-03-26T16:24:28.000-07:00
diff --git a/TestListIterator.java b/TestListIterator.java
@@ -16,6 +16,9 @@ public static void main(String[] args) {
 		}
 
 		System.out.println("\nTraversing the list in backward direction:");
+		//If without previous iteration, we should create iter like this:
+		//iter = l1.listIterator(l1.size()), so that iter points to the position
+		//right after the last element.
     	while (iter.hasPrevious()){
        		System.out.println(iter.previousIndex() + ": " + iter.previous());
     	}

Original file line number	Diff line number	Diff line change
`@@ -16,6 +16,9 @@ public static void main(String[] args) {`
`16`	`16`	`}`
`17`	`17`
`18`	`18`	`System.out.println("\nTraversing the list in backward direction:");`
	`19`	`+ //If without previous iteration, we should create iter like this:`
	`20`	`+ //iter = l1.listIterator(l1.size()), so that iter points to the position`
	`21`	`+ //right after the last element.`
`19`	`22`	`while (iter.hasPrevious()){`
`20`	`23`	`System.out.println(iter.previousIndex() + ": " + iter.previous());`
`21`	`24`	`}`