Alex's Assignments

//Stacks Assignment

import javax.swing.*;

public class ReverseWord
{
    public static void main(String[] args)
    {
        String s = JOptionPane.showInputDialog(null, "Please type a word");
        wordReverse(s);
    }
    public static void wordReverse(String orgWord)
    {
        Stack wordStack = new Stack();
        String finWord = null;
        orgWord.toLowerCase();
        char[] chArray = orgWord.toCharArray();

        for(int i = 0; i < orgWord.length(); i++)
        {
            wordStack.push(chArray[i]);
        }
        int x = 0;
        while(!wordStack.isEmpty())
        {
            chArray[x++] = (char) wordStack.pop();
        }
        finWord = String.copyValueOf(chArray);
        JOptionPane.showMessageDialog(null, finWord);
    }
}

//Queues assignment

import java.awt.*;
import java.awt.geom.Ellipse2D;
import javax.swing.*;

import java.util.Random;

public class RandomArt extends JPanel
{
    Queue randCol = new Queue();
    Queue randString = new Queue();
    Random rand = new Random();

    String[] shapes = {"circle", "square", "triangle", "rectangle"};
    Color[] colors = {Color.black, Color.blue, Color.red, Color.magenta};

    public RandomArt()
    {
        for(int x = 0; x < 4; x++)
        {
            randString.enqueue(shapes[rand.nextInt(4)]);
            randCol.enqueue(colors[rand.nextInt(4)]);
        }
    }
    public void paintComponent(Graphics g)
    {
        Graphics2D gr2D = (Graphics2D)g;
        Color shapeColor = null;
        int x = 0;
        while(x < 4)
        {
//          if(randCol.peek().equals(Color.black))
//          {
//              shapeColor = Color.black;
//              randCol.dequeue();
//          }
//          else if(randCol.peek().equals(Color.blue))
//          {
//              shapeColor = Color.blue;
//              randCol.dequeue();
//          }
//          else if(randCol.peek().equals(Color.red))
//          {
//              shapeColor = Color.red;
//              randCol.dequeue();
//          }
//          else if(randCol.peek().equals(Color.magenta))
//          {
//              shapeColor = Color.magenta;
//              randCol.dequeue();
//          }
            System.out.println(randString.peek());
            if(((String)randString.peek()).equals("circle"))
            {
                gr2D.setColor((Color)randCol.dequeue());
                int i = rand.nextInt(100);
                Ellipse2D.Float circle = new Ellipse2D.Float(rand.nextInt(500),rand.nextInt(500),i,i);
                gr2D.draw(circle);
                gr2D.fill(circle);
                randString.dequeue();
            }
            else if(((String)randString.peek()).equals("square"))
            {
                gr2D.setColor((Color)randCol.dequeue());
                int i = rand.nextInt(100), a = rand.nextInt(500), b = rand.nextInt(500);
                gr2D.drawRect(a, b, i, i);
                gr2D.fillRect(a, b, i, i);
                randString.dequeue();
            }
            else if(((String)randString.peek()).equals("triangle"))
            {
                gr2D.setColor((Color)randCol.dequeue());
                int[] a = {rand.nextInt(500),rand.nextInt(500),rand.nextInt(500)};
                int[] b = {rand.nextInt(500),rand.nextInt(500),rand.nextInt(500)};
                gr2D.drawPolygon(a, b, 3);
                gr2D.fillPolygon(a, b, 3);
                randString.dequeue();
            }
            else if(((String)randString.peek()).equals("rectangle"))
            {
                gr2D.setColor((Color)randCol.dequeue());
                int i = rand.nextInt(100), j = rand.nextInt(100), a = rand.nextInt(500), b = rand.nextInt(500);
                gr2D.drawRect(a, b, i, j);
                gr2D.fillRect(a, b, i, j);
                randString.dequeue();
            }
            x++;
        }
    }
    public static void main(String[] args)
    {
        JFrame f1 = new JFrame();
        f1.add(new RandomArt());
        f1.setSize(500,500);
        f1.setLocationRelativeTo(null);
        f1.setTitle("Got any grapes");
        f1.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        f1.setVisible(true);
    }
}


//Linked Lists assignment

//SLIIndexedListCode main method:

public static void main(String[] args)
    {
        SLIndexedListCode list = new SLIndexedListCode();

        for(int x = 0; x < list.size(); x++)
        {
            System.out.println(list.get(x));
        }
        System.out.println("");
        list.set(2, "yellow");

        for(int x = 0; x < list.size(); x++)
        {
            System.out.println(list.get(x).toString());
        }
        System.out.println("");
        list.set(2, "blue");
        for(int x = 0; x < list.size(); x++)
        {
            System.out.println(list.get(x).toString());
        }
        System.out.println("");
        list.remove(3);
        for(int x = 0; x < list.size(); x++)
        {
            System.out.println(list.get(x).toString());
        }
        System.out.println("");
        System.out.println("Empty = " + list.isEmpty());

        list.set(4, "football");
        JOptionPane.showMessageDialog(null, "Error: no node at position 5\nList size = " + list.size());
    }


//DLPositionalListCode main method:

public static void main(String[] args)
    {
        DLPositionalListCode list = new DLPositionalListCode();
        System.out.println("Previous Element: " + list.previous());
        System.out.println("Next Element: " + list.next());
        System.out.println("List size: " + list.size());

        list.add("A");
        list.add("B");
        list.add("C");
        list.add("D");
        list.add("E");
        list.add("F");
        list.add("G");
        list.add("H");
        list.add("I");
        list.add("J");
        System.out.println("");
        System.out.println(list);
        System.out.println("");
        System.out.println("Previous Element: " + list.previous());
        System.out.println("Next Element: " + list.next());
        System.out.println("List size: " + list.size());
        System.out.println("");

        //move curpos to previous node and return the value
        //Replaces what curPos is pointing to

        list.set(list.previous());

        list.set("$");
        System.out.println(list);
        int x = 0;
        while(x < 5)
        {
            list.set(list.previous());
            x++;
        }
        System.out.println("");
        System.out.println("Current Value: " + list.curPos.value);
        System.out.println("Current Index: " + list.currentIndex());
        System.out.println("Previous Index: " + list.previousIndex());
        System.out.println("Next Index: " + list.nextIndex());

        list.remove();

        System.out.println("");
        System.out.println(list);
        System.out.println("List size: " + list.size());
        System.out.println("Current value: " + list.curPos.value);

        list.remove2();

        System.out.println("");
        System.out.println(list);
        System.out.println("List size: " + list.size());
        System.out.println("Current value: " + list.curPos.value);

        list.curPos = list.head;

        list.curPos=list.head;
        for(int i = 0; i <= list.size(); ++i)
        {
            list.set("*");
            list.curPos = list.curPos.next;
        }

        System.out.println("");
        System.out.println(list);

        list.addAfter("Happy");
        list.addAfter("Birthday");
        list.addAfter("To");
        list.addAfter("You");

        System.out.println("");
        System.out.println(list);
        System.out.println(list.toBackwardString());

        list.addAfter2("Happy");
        list.addBefore("Birthday");
        list.addBefore2("To");
        list.addAfter("You");

        System.out.println("");
        System.out.println(list);
        System.out.println(list.toBackwardString());

    }