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This guide explains how to traverse a null-terminated linked list using an iterative approach in Java. The idiom is simple: use a loop to iterate through each node starting from the head (first) until reaching the end of the list (null). For each node, the value can be accessed and printed. Illustrated with a sample list containing items "Alice", "Bob", and "Carol," this method showcases a clear and efficient way to process linked list data structures in your applications.
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Traversing a List • Iteration. Idiom for traversing a null-terminated linked list. for(Node x = first; x !=null; x = x.next) { StdOut.println(x.item); } first Alice Bob Carol null item next
Traversing a List • Iteration. Idiom for traversing a null-terminated linked list. for(Node x = first; x !=null; x = x.next) { StdOut.println(x.item); } x first Alice Bob Carol null item next
Traversing a List • Iteration. Idiom for traversing a null-terminated linked list. for(Node x = first; x !=null; x = x.next) { StdOut.println(x.item); } x first Alice Bob Carol null item next
Traversing a List • Iteration. Idiom for traversing a null-terminated linked list. for(Node x = first; x !=null; x = x.next) { StdOut.println(x.item); } x Alice first Alice Bob Carol null item next
Traversing a List • Iteration. Idiom for traversing a null-terminated linked list. for(Node x = first; x !=null; x = x.next) { StdOut.println(x.item); } x Alice first Alice Bob Carol null item next
Traversing a List • Iteration. Idiom for traversing a null-terminated linked list. for(Node x = first; x !=null; x = x.next) { StdOut.println(x.item); } x Alice first Alice Bob Carol null item next
Traversing a List • Iteration. Idiom for traversing a null-terminated linked list. for(Node x = first; x !=null; x = x.next) { StdOut.println(x.item); } x Alice Bob first Alice Bob Carol null item next
Traversing a List • Iteration. Idiom for traversing a null-terminated linked list. for(Node x = first; x !=null; x = x.next) { StdOut.println(x.item); } x Alice Bob first Alice Bob Carol null item next
Traversing a List • Iteration. Idiom for traversing a null-terminated linked list. for(Node x = first; x !=null; x = x.next) { StdOut.println(x.item); } x Alice Bob first Alice Bob Carol null item next
Traversing a List • Iteration. Idiom for traversing a null-terminated linked list. for(Node x = first; x !=null; x = x.next) { StdOut.println(x.item); } x Alice Bob Carol first Alice Bob Carol null item next
Traversing a List • Iteration. Idiom for traversing a null-terminated linked list. for(Node x = first; x !=null; x = x.next) { StdOut.println(x.item); } x Alice Bob Carol first Alice Bob Carol null item next
Traversing a List • Iteration. Idiom for traversing a null-terminated linked list. for(Node x = first; x !=null; x = x.next) { StdOut.println(x.item); } x Alice Bob Carol first Alice Bob Carol null item next
Traversing a List • Iteration. Idiom for traversing a null-terminated linked list. for(Node x = first; x !=null; x = x.next) { StdOut.println(x.item); } Alice Bob Carol first Alice Bob Carol null item next