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| 排序列表 |
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public class SortedList {
private Link first;
public SortedList() {
first = null;
}
public boolean isEmpty(){
return (first == null);
}
public void insert(long key){
Link newLink = new Link(key);
Link previous = null;
Link current = first;
while (current != null && key > current.data) {
previous = current;
current = current.next;
}
if (previous == null)
first = newLink;
else
previous.next = newLink;
newLink.next = current;
}
public Link remove() {
Link temp = first;
first = first.next;
return temp;
}
public void displayList() {
System.out.print("List: ");
Link current = first;
while (current != null){
current.displayLink();
current = current.next;
}
System.out.println("");
}
public static void main(String[] args) {
SortedList theSortedList = new SortedList();
theSortedList.insert(20);
theSortedList.insert(40);
theSortedList.displayList();
theSortedList.insert(10);
theSortedList.insert(30);
theSortedList.insert(50);
theSortedList.displayList();
theSortedList.remove();
theSortedList.displayList();
}
class Link {
public long data;
public Link next;
public Link(long dd) {
data = dd;
}
public void displayLink() {
System.out.print(data + " ");
}
}
}
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