JavaDS.java

public class JavaDS {
    public static void main(String[] args){
        //stack tester
        Stack STACK1;
        STACK1 = new Stack();
        STACK1.push(23);
        STACK1.push(11);
        STACK1.push(2);
        STACK1.pop();
        STACK1.pop();
        STACK1.pop();


        //queue tester
        Queue QUEUE1;
        QUEUE1 = new Queue();
        QUEUE1.push(23);
        QUEUE1.push(11);
        QUEUE1.push(2);
        QUEUE1.display();
        QUEUE1.pop();
        QUEUE1.display();
        QUEUE1.pop();
        QUEUE1.display();
        QUEUE1.pop();
        QUEUE1.display();


//         //linkedlist teseter
//         LinkedList list = new LinkedList();
//         list.addToTail(5);
//         list.addToTail(2);
//         list.addToTail(-2);
//         System.out.println(list.removeHead()+ " Is the head, and it's been removed");
//         System.out.println(list.getHead()+" This is the new head");
//         list.addToTail(3);
//         list.addToTail(1000);
//         System.out.println(list.contains(1000));

//         //tree tester
//         Tree tree = new Tree();
//         int[] items = {5, 8, 7, 1, 9, 3, 0, 4, 6, 2};
//         for (int i : items)
//             tree.addChild(i);

//         System.out.println("Is it contain 3: " + tree.contains(3));
//         tree.display();


//         //hashtable tester
//         HashTable hashTable = new HashTable();
//         // Put some key values.
//         hashTable.insert("cat","1");
//         hashTable.insert("cat","2");
//         hashTable.insert("dog","3");
//         hashTable.remove("cat");
//         System.out.println(hashTable.retrieve("dog"));
//     }

// }