vault backup: 2024-03-21 22:58:58

Semester 2/Programming 2/Week 10 Revision/Q4.md

@@ -0,0 +1,35 @@
+```java
+public class IntNode
+{
+public int info;
+public IntNode next;
+}
+```
+![](Pasted%20image%2020240319224232.png)
+a) Write code to add 50 to the appropriate field of the node pointed to by temp.
+
+```java
+temp.info += 50;
+```
+
+b) Write code to remove from the list the item after temp.
+```java
+temp.next = temp.next.next;
+```
+
+c) Write the code to remove from the list temp.
+```java
+temp.info = temp.next.info; // Assign the next node's value to temp - this will overwrite temp's value.
+temp.next = temp.next.next; // Set the pointer for temp's next node to the node after the value taken for temp - this effectively clones temp.next and replaces temp.
+```
+
+d) Write code to go through the list and to sum all the values within the list. You may assume the existence of head, a reference to the start of the list.
+
+```java
+IntNode current = head;
+int sum = 0;
+while ( current != null ) {
+	sum += current.info;
+	current = current.next;
+}
+```