Is this good practice?

Question

Hi,
I am working on a project with some existing source code that someone else wrote. They made this file called Pair.java. This is all that is in there. I looked elsewhere and saw that the reason this person did this is because they need to store two pieces of data with the same key in a HashMap.
I am looking for feedback on whether people think this is fine, correct, bad design, etc. Like, instead of this class should I just replace it with a Vector or ArrayList, then just insert two pieces of data into that and store the Vector or ArrayList in the HashMap?
Here's the class:
* A pair of objects.
public class Pair {
  /** The first item in the pair. */
  public Object item1;
  /** The second item in the pair. */
  public Object item2;
  // ----- constructor Pair ------------------------------------------------ //
   * Builds a pair given two objects.
  public Pair(Object obj1, Object obj2) {
    item1 = obj1;
    item2 = obj2;
} // end class Pair

Answer 1

* Storage of a key/value pair. In additon to general Objects, int values are also supported (will become obsolete in J2SE 1.5).
public class Pair {
    /** Object key. */
    private Object objectKey = null;
    /** Integer key */
    private int intKey = 0;
    /** Object value. */
    private Object objectValue = null;
    /** Integer value. */
    private int intValue = 0;
     * Constructor.
    public Pair(Object key, Object value) {
        super();
        objectKey = key;
        objectValue = value;
    }//Pair()
     * Constructor.
    public Pair(Object key, int value) {
        super();
        objectKey = key;
        intValue = value;
        objectValue = new Integer(intValue);
    }//Pair()
     * Constructor.
    public Pair(int key, int value) {
        super();
        intKey = key;
        objectKey = new Integer(intKey);
        intValue = value;
        objectValue = new Integer(intValue);
    }//Pair()
     * Get key of this pair.
     * @return Object Key value.
    public Object getKey() {
        return objectKey;
    }//getKey()
     * Description.
     * @return intKey
    public int getIntKey() {
        return intKey;
    }//getIntKey()
     * Get value of this pair.
     * @return Object Value.
    public Object getValue() {
        return objectValue;
    }//getValue()
     * Description.
     * @return intValue
    public int getIntValue() {
        return intValue;
    }//getIntValue()
      * Overwrites super.
     public String toString() {
          String result = null; //default
          StringBuffer sb = new StringBuffer();
          sb.append("key=");
        sb.append(objectKey);
        sb.append(",value=");
        sb.append(objectValue);
          result = sb.toString();
          return result;
     } //toString()
}//Pair