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package Common;
import java.util.Collection;
import java.util.Iterator;
public class IntVector {
protected int[] data = new int[10];
int capacityIncr = 10;
int elt = 0;
public IntVector() {
}
public IntVector(int size) {
this.data = new int[size];
}
public int size() {
return elt;
}
public void ensureAdditionalCapacity(int addCapacity) {
ensureCapacity(data.length + addCapacity);
}
private void ensureCapacity(int minCapacity) {
int oldCapacity = data.length;
if (minCapacity > oldCapacity) {
int [] oldData = data;
int newCapacity = oldCapacity + capacityIncr;
if (newCapacity < minCapacity) {
newCapacity = minCapacity;
}
data = new int[newCapacity];
System.arraycopy(oldData, 0, data, 0, elt);
}
}
public int get(int index) {
if (index >= elt)
throw new ArrayIndexOutOfBoundsException(index);
return data[index];
}
public void Reserve(int s) {
ensureCapacity(s);
}
public void add(int b) {
ensureCapacity(elt + 1);
data[elt++] = b;
}
public void addAll(Collection c) {
ensureCapacity(elt + c.size());
Iterator it = c.iterator();
while (it.hasNext())
data[elt++] = ((Integer)it.next()).intValue();
}
public void addAll(Integer[] b) {
ensureCapacity(elt + b.length);
for (int i=0; i<b.length; i++)
data[elt++] = ((Integer)b[i]).intValue();
}
public void set(int index, int value) {
if (index >= data.length)
throw new ArrayIndexOutOfBoundsException(index);
data[index] = value;
elt = index + 1;
}
public void setRange(int start, int value) {
setRange(start, data.length - start, value);
}
public void setRange(int start, int length, int value) {
if (start + length > data.length)
throw new ArrayIndexOutOfBoundsException("start = " + start + ", length = " + length);
for (int i=0; i<length; i++)
data[start + i] = value;
elt = start + length;
}
public void clear() {
elt = 0;
}
public boolean isEmpty() {
return elt == 0;
}
public int Back() {
if (elt < 1)
throw new ArrayIndexOutOfBoundsException(0);
return data[elt-1];
}
public int Front() {
if (elt < 1)
throw new ArrayIndexOutOfBoundsException(0);
return data[0];
}
public void DeleteBack() {
// Delete(_size - 1);
remove(elt-1);
}
public int remove(int index) {
if (index >= elt)
throw new ArrayIndexOutOfBoundsException(index);
int oldValue = data[index];
int numMoved = elt - index - 1;
Integer n = new Integer(elt);
if (numMoved > 0)
System.arraycopy(n, index+1, n, index,numMoved);
elt = n.intValue();
// data[--elt] = null; // Let gc do its work
return oldValue;
}
}
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