Java

public class Problem_3{
    public static void main(String[] args){
        double[] myList = {1.2,4.7,3.9,4.0};

        //Print all the array elemts
        for (int i = 0; i < myList.length; i++){
            System.out.println(myList[i]+" ");}

            //Square all elements of the array into a new array
            
            for (int i=0; i<myList.length; i++){
              double[] square = myList[i]* myList[i];}

        

        }
    }

import java.io.BufferedWriter;
import java.io.FileWriter;

import javax.swing.JFrame;
import javax.swing.JPanel;

/*******************************************************************************************
Program Name: ClientInformation.java
Programmer's Name: Elizabeth Conklin
Program Description: This program will accept user input and save the input to a file.
*******************************************************************************************/
public class WClientTest {

    public static void main(String[] args) {

        WClient myWClient = new WClient();
        myWClient.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        myWClient.setSize(650, 175);
        myWClient.setTitle("Client Information");
        myWClient.setVisible(true); 
    }
}

import java.awt.*;
import java.awt.event.*;

import javax.swing.*;

import java.io.*;
import java.util.ArrayList;
import java.util.StringTokenizer;

public class WClient extends JFrame {

    JLabel labelName;
    JLabel labelID;
    JLabel labelStartingBalance;
    JLabel labelClosingBalance;
    JTextField textName;
    JTextField textID;
    JTextField textStartingBalance;
    JTextField textClosingBalance;
    JButton buttonSave;

    public WClient() {
        setLayout(new GridLayout(0,4));

        labelName = new JLabel("Client Name: ");
        add(labelName);
        textName = new JTextField(10);
        add(textName);
        labelID = new JLabel("Client ID: ");
        add(labelID);
        textID = new JTextField(10);
        add(textID);
        labelStartingBalance = new JLabel("Starting Balance: ");
        add(labelStartingBalance);
        textStartingBalance = new JTextField(10);
        add(textStartingBalance);
        labelClosingBalance = new JLabel("Closing Balance: ");
        add(labelClosingBalance);
        textClosingBalance = new JTextField(10);
        add(textClosingBalance);
        buttonSave = new JButton("SAVE");
        add(buttonSave);

        event e = new event();
        buttonSave.addActionListener(e);}

    public class event implements ActionListener{
        public void actionPerformed(ActionEvent e) {
                try {
                    String name = textName.getText();
                    String ID = textID.getText();
                    String startingBalance = textStartingBalance.getText();
                    String closingBalance = textClosingBalance.getText();

                    textName.setText("");
                    textID.setText("");
                    textStartingBalance.setText("");
                    textClosingBalance.setText("");

                    BufferedWriter outfile = new BufferedWriter(new FileWriter("client.txt", true));

                    outfile.write(name);
                    outfile.write(ID);
                    outfile.write(startingBalance);
                    outfile.write(closingBalance);
                    outfile.close();}
                catch (Exception ex) {
                }
            }
        }{;
    }
}

import java.util.Scanner;

class BubbbleHW {
  public static void main(String []args) {
    int num,
    int i,
    int j,
    int temp;
/*This will no longer be needed    
Scanner input = new Scanner(System.in);


  System.out.println("Enter the number of elements to sort:");
    num = input.nextInt();
This will no longer be needed*/

    int array[] = new int[num];
//Do I change  int array[] = new int [9]

//    System.out.println("Enter " + //num + " elem,ents: ");

    for (i = 0; i < num; i++)
      array[i] = input.nextInt();

    for (i = 0; i < ( num - 1 ); i++) {
      for (j = 0; j < num - i - 1; j++) {
        if (array[j] < array[j+1])
        {
          temp = array[j];
          array[j] = array[j+1];
          array[j+1] = temp;
        }
      }
    }

    System.out.println("Decended order of elemtns");

    for (i = 0; i < num; i++)
      System.out.println(array[i]);
  }
}&lt;/pre&gt;</pre>

import javax.swing.JFrame;

public class CarCareTest {

    public static void main(String[] args) {

        CarCare myCarCare = new CarCare();
        myCarCare.setSize(500, 500);
        myCarCare.setVisible(true);
        myCarCare.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    }

}

import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JMenuItem;
import javax.swing.JMenuBar;
import javax.swing.JOptionPane;
import java.awt.Color;
import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowEvent;

public class CarCare extends JFrame {

    //Declare Class Variables
    private JMenuItem bronzeOil, silverOil, goldOil;
    private JMenuItem basicWash, betterWash, bestWash;
    private JMenuItem total, clear, exit;
    private int priceOilChange, priceCarWash;

    //Create Constructor
    public CarCare(){
        super("Quick Fast Car Care");

        //Instantiate Top Level Menu Items
        JMenu oilchangeMenu = new JMenu ("Oil Change");
        JMenu carwashMenu = new JMenu ("Car Wash");
        JMenu totalclearexitMenu = new  JMenu ("Total/Clear/Exit");

        //Instantiate Sub Menu Items
        bronzeOil = new JMenuItem("Bronze");
        silverOil = new JMenuItem("Silver");
        goldOil = new JMenuItem("Gold");
        basicWash = new JMenuItem("Basic");
        betterWash = new JMenuItem("Better");
        bestWash = new JMenuItem("Best");
        total = new JMenuItem("Total");
        clear = new JMenuItem("Clear");
        exit = new JMenuItem("Exit");

        //Set Layout Manager
        setLayout(new FlowLayout());

        //Add Sub Menu Items To Top Level Menu
        oilchangeMenu.add(bronzeOil);
        oilchangeMenu.add(silverOil);
        oilchangeMenu.add(goldOil);
        carwashMenu.add(basicWash);
        carwashMenu.add(betterWash);
        carwashMenu.add(bestWash);
        totalclearexitMenu.add(total);
        totalclearexitMenu.add(clear);
        totalclearexitMenu.add(exit);

        //Create Menu Bar
        JMenuBar bar = new JMenuBar();

        //Add Top Level(s) To Menu Bar
        bar.add(oilchangeMenu);
        bar.add(carwashMenu);
        bar.add(totalclearexitMenu);

        //Add Menu Bar To JFrame 
        setJMenuBar(bar);

        //Create MenuHandlerObject
        MenuHandler handler = new MenuHandler();

        //Add Event Handling Listeners
        bronzeOil.addActionListener(handler);
        silverOil.addActionListener(handler);
        goldOil.addActionListener(handler);
        basicWash.addActionListener(handler);
        betterWash.addActionListener(handler);
        bestWash.addActionListener(handler);
        total.addActionListener(handler);
        clear.addActionListener(handler);
        exit.addActionListener(handler);
    }//End Constructor

        //Display Output

    //Create Inner Class
    private class MenuHandler implements ActionListener{
        public void actionPerformed(ActionEvent event) {
            System.out.println("MenuHandler Called.");

            //Determine Oil Change & Set Price 
            if (event.getSource() == bronzeOil){
                priceOilChange = 20;}
            else if (event.getSource() == silverOil);{
                priceOilChange = 25;}
            if (event.getSource() == goldOil){
                priceOilChange = 30;}

            //Determine Car Wash & Set Price
            if (event.getSource() == basicWash) {
                priceCarWash = 5;}
            else if (event.getSource() == betterWash);{
                priceCarWash = 10;}
            if (event.getSource() == bestWash){
                priceCarWash = 15;}

            //Determine Total
            if (event.getSource() == total){
            }

            //Clear Application
            if (event.getSource() == clear){
            }

            //Exit Application
            if (event.getSource() == exit){
            System.exit(0);}

        }//End ActionPerformed Method
    }//End MenuHandler Class
}//End CarCare Class