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| 9. 48. 4. 排序列表 |
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class Link {
public int iData;
public Link next;
public Link(int id) {
iData = id;
}
public String toString() {
return "{" + iData + "} ";
}
}
class SortedList {
private Link first;
public SortedList() {
first = null;
}
public boolean isEmpty() {
return (first == null);
}
public void insert(int key) {
Link newLink = new Link(key);
Link previous = null;
Link current = first;
while (current != null && key > current.iData) {
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 String toString() {
String str = "";
Link current = first;
while (current != null) {
str += current.toString();
current = current.next;
}
return str;
}
}
public class MainClass {
public static void main(String[] args) {
SortedList theSortedList = new SortedList();
theSortedList.insert(20);
theSortedList.insert(40);
System.out.println(theSortedList);
theSortedList.insert(10);
theSortedList.insert(30);
theSortedList.insert(50);
System.out.println(theSortedList);
theSortedList.remove();
System.out.println(theSortedList);
}
}
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{20} {40}
{10} {20} {30} {40} {50}
{20} {30} {40} {50} |
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