Link stack : Stack « Collections Data Structure « Java

Link stack

     
public class LinkStack {
  private LinkList list;

  public LinkStack() {
    list = new LinkList();
  }

  public void push(long j) {
    list.insertFirst(j);
  }

  public long pop() {
    return list.deleteFirst();
  }

  public boolean isEmpty() {
    return (list.isEmpty());
  }

  public void displayStack() {
    System.out.print("Stack: ");
    list.displayList();
  }

  public static void main(String[] args) {
    LinkStack theStack = new LinkStack();

    theStack.push(20);
    theStack.push(40);

    theStack.displayStack();

    theStack.push(60);
    theStack.push(80);

    theStack.displayStack();

    theStack.pop();
    theStack.pop();

    theStack.displayStack();
  }

  class LinkList {
    private Link first;

    public LinkList() {
      first = null;
    }

    public boolean isEmpty() {
      return (first == null);
    }

    public void insertFirst(long d) {
      Link newLink = new Link(d);
      newLink.next = first;
      first = newLink;
    }

    public long deleteFirst() {
      Link buf = first;
      first = first.next;
      return buf.data;
    }

    public void displayList() {
      Link current = first;
      while (current != null) {
        current.displayLink();
        current = current.next;
      }
      System.out.println("");
    }

    class Link {
      public long data; // data item

      public Link next; // next link in list

      public Link(long d) {
        data = d;
      }

      public void displayLink() {
        System.out.print(data + " ");
      }
    }

  }
}

1.	Demonstration of Stack Class
2.	Stack in java.util
3.	Stack data structure
4.	Bracket Checker
5.	String Reverser Through Stack
6.	Triangular numbers
7.	Triangular numbers with stack replaces recursion
8.	Show String Reversals
9.	Generic stack demo with annotation
10.	Character Stack
11.	A faster, smaller stack implementation.
12.	Growable Object stack with type specific access methods
13.	Growable int stack with type specific access methods
14.	Stack for boolean values
15.	extends ArrayList to create Stack
16.	Growable String stack with type specific access methods.
17.	A simple integer based stack.
18.	A very simple unsynchronized stack. This one is faster than the java.util-Version.
19.	Pop an empty stack ntry times and catch the resulting exception
20.	Object Stack
21.	Fast stack

Link stack : Stack « Collections Data Structure « Java

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