* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
- *
+ *
* http://www.apache.org/licenses/LICENSE-2.0
- *
+ *
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
/**
* A Ladder is a Stack like Storage Class, but where you can ascend and descend while
* the elements exists.
- *
+ *
* Like an extension ladder, you can make taller as you go
- *
+ *
* @author Jonathan
*
*/
public void bottom() {
rung = 0;
}
-
+
public void top() {
rung = struts.length-1;
while (rung>0 && struts[rung]==null)--rung;
}
-
+
public int howHigh() {
return rung;
}
-
+
public void jumpTo(int rung) {
if (rung>=struts.length) {
Object[] temp = new Object[init_size*((rung/init_size)+1)];
}
this.rung = rung;
}
-
+
public int height() {
return struts.length;
}
-
+
public void cutTo(int rungs) {
Object[] temp = new Object[rungs];
System.arraycopy(struts, 0, temp, 0, Math.min(rungs, struts.length));
struts = temp;
}
-
+
public void ascend() {
++rung;
if (rung>=struts.length) {
struts = temp;
}
}
-
+
public void descend() {
--rung;
}
-
+
@SuppressWarnings("unchecked")
public T peek() {
return (T)struts[rung];
}
-
+
public void push(T t) {
struts[rung]=t;
}
-
+
@SuppressWarnings("unchecked")
public T pop() {
T t = (T)struts[rung];