summaryrefslogtreecommitdiffstats
path: root/src/demos/util/FloatList.java
diff options
context:
space:
mode:
Diffstat (limited to 'src/demos/util/FloatList.java')
-rw-r--r--src/demos/util/FloatList.java100
1 files changed, 100 insertions, 0 deletions
diff --git a/src/demos/util/FloatList.java b/src/demos/util/FloatList.java
new file mode 100644
index 0000000..fe06e2e
--- /dev/null
+++ b/src/demos/util/FloatList.java
@@ -0,0 +1,100 @@
+/*
+ * 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
+ * MICROSYSTEMS, 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 floats. */
+
+public class FloatList {
+ private static final int DEFAULT_SIZE = 10;
+
+ private float[] data = new float[DEFAULT_SIZE];
+ private int numElements;
+
+ public void add(float f) {
+ if (numElements == data.length) {
+ resize(1 + numElements);
+ }
+ data[numElements++] = f;
+ assert numElements <= data.length;
+ }
+
+ public int size() {
+ return numElements;
+ }
+
+ public float get(int index) {
+ if (index >= numElements) {
+ throw new ArrayIndexOutOfBoundsException(index);
+ }
+ return data[index];
+ }
+
+ public void put(int index, float val) {
+ if (index >= numElements) {
+ throw new ArrayIndexOutOfBoundsException(index);
+ }
+ data[index] = val;
+ }
+
+ public void trim() {
+ if (data.length > numElements) {
+ float[] newData = new float[numElements];
+ System.arraycopy(data, 0, newData, 0, numElements);
+ data = newData;
+ }
+ }
+
+ public float[] getData() {
+ return data;
+ }
+
+ private void resize(int minCapacity) {
+ int newCapacity = 2 * data.length;
+ if (newCapacity == 0) {
+ newCapacity = DEFAULT_SIZE;
+ }
+ if (newCapacity < minCapacity) {
+ newCapacity = minCapacity;
+ }
+ float[] newData = new float[newCapacity];
+ System.arraycopy(data, 0, newData, 0, data.length);
+ data = newData;
+ }
+}