Java Program to Implement AttributeList API

This Java program Implements AttributeList API.Represents a list of values for attributes of an MBean.

Here is the source code of the Java Program to Implement AttributeList API.The Java program is successfully compiled and run on a Linux system. The program output is also shown below.

```
import java.util.Collection;
```
```
import java.util.List;
```
```
import javax.management.Attribute;
```
```
import javax.management.AttributeList;
```
```
 
```
```
public class AttributeListImpl
```
```
{
```

    private AttributeList attributeList;

```
 
```

    /** Constructs an empty AttributeList. **/

```
    public AttributeListImpl()
```
```
    {
```

        attributeList = new AttributeList();

```
    }
```
```
 
```
```
    /**
```

     * Constructs an AttributeList containing the elements of the AttributeList

     * specified, in the order in which they are returned by the AttributeList's

```
     * iterator.
```
```
    **/
```

    public AttributeListImpl(AttributeList list)

```
    {
```

        attributeList = new AttributeList();

```
    }
```
```
 
```

    /** Constructs an empty AttributeList with the initial capacity specified. **/

    public AttributeListImpl(int initialCapacity)

```
    {
```

        attributeList = new AttributeList(initialCapacity);

```
    }
```
```
 
```
```
    /**
```

     * Constructs an AttributeList containing the elements of the List

     * specified, in the order in which they are returned by the List's

```
     * iterator.
```
```
     **/
```

    public AttributeListImpl(List<Attribute> list)

```
    {
```

        attributeList = new AttributeList();

```
    }
```
```
 
```

    /** Adds the Attribute specified as the last element of the list. **/

```
    public void add(Attribute object)
```
```
    {
```
```
        attributeList.add(object);
```
```
    }
```
```
 
```

    /** Inserts the attribute specified as an element at the position specified. **/

    public void add(int index, Attribute object)

```
    {
```

        attributeList.add(index, object);

```
    }
```
```
 
```

    /** Inserts the specified element at the specified position in this list. **/

    public void add(int index, Object element)

```
    {
```

        attributeList.add(index, element);

```
    }
```
```
 
```

    /** Appends the specified element to the end of this list. **/

```
    public boolean add(Object element)
```
```
    {
```

        return attributeList.add(element);

```
    }
```
```
 
```
```
    /**
```

     * Appends all the elements in the AttributeList specified to the end of the

     * list, in the order in which they are returned by the Iterator of the

```
     * AttributeList specified.
```
```
    **/
```

    public boolean addAll(AttributeList list)

```
    {
```

        return attributeList.addAll(list);

```
    }
```
```
 
```
```
    /**
```

     * Appends all of the elements in the specified collection to the end of

     * this list, in the order that they are returned by the specified

```
     * collection's Iterator.
```
```
     **/
```

    public boolean addAll(Collection<?> c)

```
    {
```
```
        return attributeList.addAll(c);
```
```
    }
```
```
 
```
```
    /**
```

     * Inserts all of the elements in the AttributeList specified into this

     * list, starting at the specified position, in the order in which they are

     * returned by the Iterator of the AttributeList specified.

```
     **/
```

    public boolean addAll(int index, AttributeList list)

```
    {
```

        return attributeList.addAll(index, list);

```
    }
```
```
 
```
```
    /**
```

     * Inserts all of the elements in the specified collection into this list,

     * starting at the specified position.

```
    **/
```

    public boolean addAll(int index, Collection<?> c)

```
    {
```

        return attributeList.addAll(index, c);

```
    }
```
```
 
```

    /** Return a view of this list as a List<Attribute>. **/

```
    public List<Attribute> asList()
```
```
    {
```
```
        return attributeList.asList();
```
```
    }
```
```
 
```

    /** Sets the element at the position specified to be the attribute specified. **/

    public void set(int index, Attribute element)

```
    {
```

        attributeList.set(index, element);

```
    }
```
```
 
```
```
    /**
```

     * Replaces the element at the specified position in this list with the

```
     * specified element.
```
```
    **/
```

    public Object set(int index, Object element)

```
    {
```

        return attributeList.set(index, element);

```
    }
```
```
 
```

    public static void main(String... arg)

```
    {
```

        AttributeListImpl attributeList = new AttributeListImpl();

        attributeList.add(new Attribute("one", 1));

        attributeList.add(new Attribute("two", 2));

        attributeList.add(new Attribute("three", 3));

        attributeList.add(new Attribute("four", 4));

        attributeList.add(new Attribute("five", 5));

        attributeList.add(new Attribute("six", 7));

        System.out.println("the elements of the attributelist are");

        List<Attribute> list = attributeList.asList();

```
        int index = 0;
```
```
        while (index < list.size())
```
```
        {
```

            System.out.print(list.get(index++) + "\t");

```
        }
```
```
        System.out.println();
```

        attributeList.set(5, new Attribute("six", 6));

        System.out.println("after setting index 5");

        System.out.println("the elements of the attributelist are");

```
        list = attributeList.asList();
```
```
        index = 0;
```
```
        while (index < list.size())
```
```
        {
```

            System.out.print(list.get(index++) + "\t");

```
        }
```
```
    }
```
```
}
```

$ javac AttributeListImpl.java
$ java AttributeListImpl
the elements of the attributelist are
one = 1	two = 2	three = 3	four = 4	five = 5	six = 7	
after setting index 5
the elements of the attributelist are
one = 1	two = 2	three = 3	four = 4	five = 5	six = 6

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