Attach 2 screen shots demonstrating an understanding of file management tools, such as keyboard shortcuts, copy, paste, delete,
1 answer:
Answer:
Explanation:
In the first image, I am showing hovering over the copy button on the toolbar that shows the keyboard shortcut to copy an item. I am also copying the 360 Photos folder using that shortcut. In the second image, I am hovering over the paste icon in the toolbar to show the shortcut for that button and using it to paste the 360 Photos folder within the Camera Roll folder. There are many different keyboard shortcuts that can be used here are some of the following...
delete: del
move: shift + drag the mouse (no keyboard shortcut)
rename: F2
create shortcut: (no keyboard shortcut) right click item and choose create shortcut.
search: windows key + S
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Solution :
public class {
private stockName,
;
private nShares;
private price;
public
{
this.stockName = "";
this.purchaseDate = "";
this.nShares = 0;
this.price = 0.0;
}
public Stock(String stockName, String purchaseDate, int nShares, double price) {
this.stockName = stockName;
this.purchaseDate = purchaseDate;
this.nShares = nShares;
this.price = price;
}
public String getStockName() {
return stockName;
}
public void setStockName(String stockName) {
this.stockName = stockName;
}
public String getPurchaseDate() {
return purchaseDate;
}
public void setPurchaseDate(String purchaseDate) {
this.purchaseDate = purchaseDate;
}
public int getnShares() {
return nShares;
}
public void setnShares(int nShares) {
this.nShares = nShares;
}
public double getPrice() {
return price;
}
public void setPrice(double price) {
this.price = price;
}
public String toString()
{
return("Stock name: " + this.stockName + "\nPurchase date: " + this.purchaseDate
+ "\nNumber of shares of stock: " + this.nShares + "\nPrice: $" + String.format("%,.2f", this.price));
}
public void printStock()
{
System.out.println("Stock name: " + this.stockName + "\nPurchase date: " + this.purchaseDate
+ "\nNumber of shares of stock: " + this.nShares + "\nPrice: $" + String.format("%,.2f", this.price)
+ "\n");
}
}
StockTester.java (Driver class)
import File;
import File
Exception;
import ArrayList;
import Scanner;
class StockTester {
private static final String FILENAME = "StockInfocsv";
public static main(
args)
{
ArrayList dataStock =
(FILENAME);
System.out.println("Initial stocks:");
for(Stock s : dataStock)
s.printStock();
System.out.println("Adding a new Stock object to the list..");
Stock newStock = new Stock("Gamma", "03/01/20", 100, 50.5);
dataStock.add(newStock);
System.out.println("\nStocks after adding the new Stock..");
for(Stock s : dataStock)
s.printStock();
Stock targetStock = dataStock.get(3);
double reqReturn = requiredReturn(targetStock, 4000, 3);
System.out.println("Required rate of return = " + String.format("%.2f", reqReturn) + "%");
}
private static ArrayList<Stock> readData(String filename)
{
ArrayList<Stock> stocks = new ArrayList<>();
Scanner fileReader;
try
{
fileReader = new Scanner(new File(filename));
while(fileReader.hasNextLine())
{
String[] data = fileReader.nextLine().trim().split(",");
String stockName = data[0];
String purchaseDate = data[1];
int nShares = Integer.parseInt(data[2]);
double price = Double.parseDouble(data[3]);
stocks.add(new (stockName,
, nShares, price));
}
fileReader.close();
}catch(FileNotFoundException fnfe){
System.out.println(filename + " cannot be found!");
System.exit(0);
}
return stocks;
}
private static double requiredReturn(Stock s, double targetPrice, int years)
{
double reqReturn;
double initialPrice = s.getPrice() * s.getnShares();
reqReturn = ((targetPrice - initialPrice) / initialPrice * years) * 100;
return reqReturn;
}
}