Convert an Array to a Vector : Arrays « Collections Data Structure « Java

1. Java
2. Collections Data Structure
3. Arrays

Convert an Array to a Vector

 

/*
 * Copyright (c) Ian F. Darwin, http://www.darwinsys.com/, 1996-2002.
 * All rights reserved. Software written by Ian F. Darwin and others.
 * $Id: LICENSE,v 1.8 2004/02/09 03:33:38 ian Exp $
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS''
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
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 * Java, the Duke mascot, and all variants of Sun's Java "steaming coffee
 * cup" logo are trademarks of Sun Microsystems. Sun's, and James Gosling's,
 * pioneering role in inventing and promulgating (and standardizing) the Java 
 * language and environment is gratefully acknowledged.
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 * The pioneering role of Dennis Ritchie and Bjarne Stroustrup, of AT&T, for
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import java.util.Arrays;
import java.util.Calendar;
import java.util.Date;
import java.util.Enumeration;
import java.util.List;
import java.util.Vector;

/** Convert an Array to a Vector. */
public class ArrayToVector {
  public static void main(String[] args) {
    Object[] a1d = { "Hello World", new Date(), Calendar.getInstance(), };
    // Arrays.asList(Object[]) --> List
    List l = Arrays.asList(a1d);

    // Vector contstructor takes Collection
    // List is a subclass of Collection
    Vector v;
    v = new Vector(l);

    // Or, more simply:
    v = new Vector(Arrays.asList(a1d));

    // Just to prove that it worked.
    Enumeration e = v.elements();
    while (e.hasMoreElements()) {
      System.out.println(e.nextElement());
    }
  }
}

           
         
  

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55.	Comparing Arrays: null arrays are equal
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