A Linked List of Objects
The file IntList.java contains an example of a linked list of integers A list of objects is a lot like a list of integers or a particular type of object such as a Magazine, except the value stored is an Object, not an int or Magazine.
// ***************************************************************
// FILE: IntList.java
//
// Purpose: Defines a class that represents a list of integers
//
// ***************************************************************
public class IntList
{
privateIntNode front; //first node in list
//—————————————–
// Constructor. Initially list is empty.
//—————————————–
publicIntList()
{
front = null;
}
//—————————————–
// Adds given integer to front of list.
//—————————————–
public void addToFront(intval)
{
front = new IntNode(val,front);
}
//—————————————–
// Adds given integer to end of list.
//—————————————–
public void addToEnd(intval)
{
IntNodenewnode = new IntNode(val,null);
//if list is empty, this will be the only node in it
if (front == null)
front = newnode;
else
{
//make temp point to last thing in list
IntNode temp = front;
while (temp.next != null)
temp = temp.next;
//link new node into list
temp.next = newnode;
}
}
//—————————————–
// Removes the first node from the list.
// If the list is empty, does nothing.
//—————————————–
public void removeFirst()
{
if (front != null)
front = front.next;
}
//————————————————
// Prints the list elements from first to last.
//————————————————
public void print()
{
System.out.println(“——————–“);
System.out.print(“List elements: “);
IntNode temp = front;
while (temp != null)
{
System.out.print(temp.val + ” “);
temp = temp.next;
}
System.out.println(“n———————–n”);
}
//*************************************************************
// An inner class that represents a node in the integer list.
// The public variables are accessed by the IntList class.
//*************************************************************
private class IntNode
{
publicintval; //value stored in node
publicIntNode next; //link to next node in list
//——————————————————————
// Constructor; sets up the node given a value and IntNode reference
//——————————————————————
publicIntNode(intval, IntNode next)
{
this.val = val;
this.next = next;
}
}
}
Write a class ObjList that contains arbitrary objects and that has the following methods:
Order an Essay Now & Get These Features For Free:
Turnitin Report
Formatting
Title Page
Citation
Outline
