43 lines
1.3 KiB
Java
43 lines
1.3 KiB
Java
package Sorting;
|
|
|
|
import java.util.Arrays;
|
|
import java.util.LinkedList;
|
|
import java.util.ListIterator;
|
|
|
|
public class InsertionSorterLinkedList extends Sorter{
|
|
|
|
public InsertionSorterLinkedList(RandomNumberFileReader reader){
|
|
super("insertion sort (linked list)", reader);
|
|
}
|
|
|
|
protected void sort(){
|
|
LinkedList<Integer> numbersLL = new LinkedList<Integer>(Arrays.asList(numbers));//make a linked list from numbers array
|
|
int index=0;
|
|
ListIterator<Integer> iter = numbersLL.listIterator();
|
|
while(index<numbersLL.size()&&iter.hasNext()){
|
|
int value = iter.next();
|
|
iter.remove();
|
|
if(iter.hasPrevious()){
|
|
int current=value;
|
|
do{
|
|
current = iter.previous();
|
|
}while(compare(current,value)>0 && iter.hasPrevious());
|
|
if(compare(current,value)<0){
|
|
iter.next();
|
|
}
|
|
}
|
|
iter.add(value);
|
|
while(iter.nextIndex()<=index){
|
|
iter.next();
|
|
}
|
|
index++;
|
|
}
|
|
/*
|
|
for(int i=0;i<numbers.length;i++){
|
|
writeToArray(numbers, i, numbersll.removeFirst());//write sorted linked list back into array
|
|
}*/
|
|
numbersLL.toArray(numbers);
|
|
writesUsed += numbers.length;
|
|
}
|
|
|
|
} |