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/*
* Copyright (c) 2003 Sun Microsystems, Inc. All Rights Reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* - Redistribution of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistribution 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.
*
* Neither the name of Sun Microsystems, Inc. or the names of
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* This software is provided "AS IS," without a warranty of any kind. ALL
* EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES,
* INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A
* PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN
* MIDROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR
* ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
* DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR
* ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR
* DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE
* DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY,
* ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF
* SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
*
* You acknowledge that this software is not designed or intended for use
* in the design, construction, operation or maintenance of any nuclear
* facility.
*
* Sun gratefully acknowledges that this software was originally authored
* and developed by Kenneth Bradley Russell and Christopher John Kline.
*/
package demos.util;
/** Growable array of ints. */
public class IntList {
private static final int DEFAULT_SIZE = 10;
private int[] data = new int[DEFAULT_SIZE];
private int numElements;
public void add(int f) {
if (numElements == data.length) {
resize(1 + numElements);
}
data[numElements++] = f;
assert numElements <= data.length;
}
public int size() {
return numElements;
}
public int get(int index) {
if (index >= numElements) {
throw new ArrayIndexOutOfBoundsException(index);
}
return data[index];
}
public void put(int index, int val) {
if (index >= numElements) {
throw new ArrayIndexOutOfBoundsException(index);
}
data[index] = val;
}
public void trim() {
if (data.length > numElements) {
int[] newData = new int[numElements];
System.arraycopy(data, 0, newData, 0, numElements);
data = newData;
}
}
public int[] getData() {
return data;
}
private void resize(int minCapacity) {
int newCapacity = 2 * data.length;
if (newCapacity == 0) {
newCapacity = DEFAULT_SIZE;
}
if (newCapacity < minCapacity) {
newCapacity = minCapacity;
}
int[] newData = new int[newCapacity];
System.arraycopy(data, 0, newData, 0, data.length);
data = newData;
}
}
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