Alibaba: verschob „Javakurs/Übungsaufgaben/Kassenbon++/Muserloesung“ nach „Javakurs/Übungsaufgaben/Kassenbon++/Musterloesung“: Tippfehler im Namen

2013-03-02T11:09:58Z

verschob „Javakurs/Übungsaufgaben/Kassenbon++/Muserloesung“ nach „Javakurs/Übungsaufgaben/Kassenbon++/Musterloesung“: Tippfehler im Namen

Mario: Lösung added

2011-02-26T12:09:23Z

Lösung added

Neue Seite

= Receipt.java =
<pre>
import java.util.Vector;

/**
* This class will be used to create a generic receipt
*/
public class Receipt {
//! java api: vector storing items
protected Vector<ReceiptItem> _list;

//! Constructor clearing the receipt
public Receipt() {
_list = new Vector<ReceiptItem>();
}

//! add one item at the last position of list
public void add(ReceiptItem receiptItem) {
_list.add(receiptItem);
}

//! prints all items to console, plus a fancy header ...
public void print() {
// print a nice header
System.out.println("╔════════════════════════╗");
System.out.println("║ FreitagsrundenShop 042 ║");
System.out.println("║ Franklinstr. 28/29 ║");
System.out.println("║ 10587 Berlin ║");
System.out.println("║ ☏ 030 314 213 86 ║");
System.out.println("╚════════════════════════╝");
System.out.println();

// print each item and add its price
double sum = 0.0;
for( ReceiptItem item : _list )
{
System.out.printf("%-25s\n", item.getName());
System.out.printf("%3dx %21.2f\n", item.getAmount(),item.getPrice());

sum += item.getPrice() * item.getAmount();
}
System.out.println();

// add a nice underscore line (-3: 2 floating parts + one ".")
String line = new String();
for( int i = -3; i < Math.log(sum)/Math.log(10);++i) {
line += "=";
}

System.out.printf("%26s\n", line);
System.out.printf("Summe EUR %16.2f\n", sum);
System.out.printf("%26s\n", line);
}

}
</pre>

= ReceiptItem.java =
<pre>
/**
* This class will represent one item of a receipt
*/
public class ReceiptItem {

//! Identifier of given item
protected String _name;

//! amount of this items
protected int _amount;

//! price per item
protected double _price;

public ReceiptItem(String name, int amount, double price) {
this.setName( name );
this.setAmount( amount );
this.setPrice( price );
}

public String getName() {
return _name;
}

public int getAmount() {
return _amount;
}

public double getPrice() {
return _price;
}

public void setName(String name) {
if( name.equals("") != true ) {
this._name = name;
}
}

public void setAmount(int amount) {
if( amount > 0 ) {
this._amount = amount;
}
}

public void setPrice(double price) {
if( price > 0.0 ) {
this._price = price;
}
}

}
</pre>

← Nächstältere Version	Version vom 2. März 2013, 11:09 Uhr
(kein Unterschied)

Javakurs/Übungsaufgaben/Kassenbon++/Musterloesung - Versionsgeschichte

Alibaba: verschob „Javakurs/Übungsaufgaben/Kassenbon++/Muserloesung“ nach „Javakurs/Übungsaufgaben/Kassenbon++/Musterloesung“: Tippfehler im Namen

Mario: Lösung added