Removes duplicate elements from the array : Array Insert Remove « Collections Data Structure « Java

1. Java
2. Collections Data Structure
3. Array Insert Remove

Removes duplicate elements from the array

     
import java.lang.reflect.Array;
import java.util.Enumeration;
import java.util.Hashtable;


     /*********************************************************************
     * Array manipulation for Java 1.1+.
     *
     * <p>
     * Java 1.1 compatible.
     * </p>
     *
     * @see
     *   ArrayLib2
     *
     * @version
     *   2003-04-07
     * @since
     *   2001-04-06
     * @author
     *   <a href="http://croftsoft.com/">David Wallace Croft</a>*/
public class Util{



    /*********************************************************************
    * Removes duplicate elements from the array.
    *********************************************************************/
    public static Object [ ]  removeDuplicates ( Object [ ]  array )
    //////////////////////////////////////////////////////////////////////
    {

      Hashtable  hashtable = new Hashtable ( );

      for ( int  i = 0; i < array.length; i++ )
      {
        hashtable.put ( array [ i ], array [ i ] );
      }

      Object [ ]  newArray = ( Object [ ] ) Array.newInstance (
        array.getClass ( ).getComponentType ( ), hashtable.size ( ) );

      int  index = 0;

      Enumeration  enumeration = hashtable.elements ( );

      while ( enumeration.hasMoreElements ( ) )
      {
        newArray [ index++ ] = enumeration.nextElement ( );
      }

      return newArray;
    }


}

   
    
    
    
    
  

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