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  4. X681: LinkedBag ToString

X681: LinkedBag ToString

For this question assume the following code:

​x
 
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​
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public class LinkedBag<T> implements BagInterface<T>{
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    private Node firstNode;
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    private int numberOfEntries;
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​
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​
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    public LinkedBag() {
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      firstNode = null;
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      numberOfEntries = 0;
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    }
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​
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​
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    public int getCurrentSize(){
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       return numberOfEntries;
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    }
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}
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​
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​
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public class  Node<T> {
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    private T data;
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    private Node<T> next;
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    public Node(T dataPortion, Node<T> nextNode) {
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        data = dataPortion;
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        next = nextNode;
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    } // end constructor
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    public Node(T dataPortion) {
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        this(dataPortion, null);
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    } // end constructor
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    public Node<T> getNext() {
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        return next;
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    }
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    public void setNext(Node<T> newNext) {
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        next = newNext;
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    }
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    public T getData() {
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        return data;
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    }
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    public void setData(T data) {
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        this.data = data;
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    }
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}

Given the following method signature, write a toString method that will print out the contents of the linked bag:

For example, calling toString on a linked bag that contained "A", "B", and "C" would return "[A,B,C]"

You will not have access to any of the methods defined in BagInterface

An empty bag should return: ""

Your Answer:

xxxxxxxxxx
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public String toString () {
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}
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​
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