Util.java Source code

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Here is the source code for Util.java

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import java.lang.reflect.Array;

/*********************************************************************
* 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 {
    /*********************************************************************
     * Appends an Object to an Object array.
     *
     * <p>
     * Example:
     * <code>
     * <pre>
     * String [ ]  stringArray
     *   = ( String [ ] ) ArrayLib.append ( new String [ ] { }, "" );
     * </pre>
     * </code>
     * </p>
     *
     * @throws NullArgumentException
     *
     *   If either argument is null.
     *
     * @return
     *
     *   Returns a new array with the same component type as the old array.
     *********************************************************************/
    public static Object[] append(Object[] oldArray, Object o)
    //////////////////////////////////////////////////////////////////////
    {
        Object[] newArray = (Object[]) Array.newInstance(oldArray.getClass().getComponentType(),
                oldArray.length + 1);

        System.arraycopy(oldArray, 0, newArray, 0, oldArray.length);

        newArray[oldArray.length] = o;

        return newArray;
    }

}