Compare the values added and removed from the two values.

Arraylist arrbeforeedit =   New Arraylist ();
Arrbeforeedit. Add ( 1 );
Arrbeforeedit. Add ( 2 );
Arrbeforeedit. Add ( 3 );
Arrbeforeedit. Add ( 4 );
Arrbeforeedit. Add ( 5 );

Arraylist arrafteredit =   New Arraylist ();
Arrafteredit. Add ( 1 );
Arrafteredit. Add ( 2 );
Arrafteredit. Add ( 3 );
Arrafteredit. Add ( 4 );
Arrafteredit. Add ( 6 );

// New Value Object
Arraylist addarraylist =   New Arraylist ();
Foreach ( Int I In Arrafteredit)
{
If ( ! Arrbeforeedit. Contains (I ))
{
Addarraylist. Add (I );
}

}

Foreach(IntIInAddarraylist)
{
Arrafteredit. Remove (I );

}

// Deleted array object
Arraylist delarraylist =   New Arraylist ();
Foreach ( Int I In Arrafteredit)
{
Arrbeforeedit. Remove (I );

}

Delarraylist=Arrbeforeedit;