Factory
3009594
parent
b48452801b
commit
7df5dc20f7
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@ -3,37 +3,42 @@ package Algorithmus;
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public class Allgemeine_Übungen {
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public static void main(String[] args) {
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String text = "H";
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try {
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System.out.println(codePointBefore(text,1));
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int [] nums = {3, 4, -7, 3, 1, 3, 1, -4, -2, -2};
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subarraysWith0Sum(nums);
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}
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}catch(StringIndexOutOfBoundsException e) {
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System.out.println(e.toString());
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public static void subarraysWith0Sum(int [] arr) {
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int sum = 0;
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for (int i = 0; i < arr.length;i++) {
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sum = 0;
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for (int j = i ; j < arr.length ; j++) {
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sum += arr[j];
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if ( sum == 0)
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System.out.println("subarray: " + arr[i] + " .... " + arr[j]);
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}
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}
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}
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public static void findApair(int[] arr, int target) {
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for (int i = 0; i < arr.length - 1; i++)
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for (int j = i + 1; j < arr.length - 1; j++)
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if (arr[i] + arr[j] == target) {
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System.out.println("Pair found (" + arr[i] + " ," + arr[j] + ")");
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break;
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}
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}
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static int codePointBefore(String s, int index)throws StringIndexOutOfBoundsException{
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if (index > s.length() + 1 || index < 1)
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throw new StringIndexOutOfBoundsException();
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char[] charArray = s.toCharArray();
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return charArray[index-1];
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}
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static int codePointAt(String s, int index)throws StringIndexOutOfBoundsException {
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if (index > s.length() || index < 0)
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throw new StringIndexOutOfBoundsException();
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char[] charArray = s.toCharArray();
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return charArray[index];
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}
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static char charAt(String s, int index) throws StringIndexOutOfBoundsException {
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if (index > s.length() || index < 0)
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throw new StringIndexOutOfBoundsException();
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char[] charArray = s.toCharArray();
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return charArray[index];
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}
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}
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@ -0,0 +1,67 @@
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package DesignPatterns.Erzeugungsmuster_CreationalPatterns.Factory;
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public class FactoryMit_Java_Reflection {
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public static void main(String[] args) {
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try {
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// Erzeugung eines Hundes mit der Factory-Methode
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Tier hund = Tier.erzeugeTier("Hund", 3);
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System.out.println(hund); // Ausgabe: Hund, Alter: 3
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// Erzeugung einer Katze mit der Factory-Methode
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Tier katze = Tier.erzeugeTier("Katze", 5);
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System.out.println(katze); // Ausgabe: Katze, Alter: 5
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} catch (Exception e) {
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e.printStackTrace();
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}
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}
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}
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//Basisklasse Tier
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class Tier {
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private int alter;
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public Tier(int alter) {
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this.alter = alter;
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}
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public int getAlter() {
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return alter;
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}
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@Override
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public String toString() {
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return "Tier, Alter: " + alter;
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}
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// Die Factory-Methode, die ein Tier-Objekt erzeugt
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public static Tier erzeugeTier(String tierart, int alter) throws Exception {
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// Sucht die Klasse basierend auf dem tierart-String und erstellt eine neue Instanz
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return (Tier) Class.forName(tierart)
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.getDeclaredConstructor(Integer.TYPE)
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.newInstance(alter);
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}
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}
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//Klasse Hund, erbt von Tier
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class Hund extends Tier {
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public Hund(int alter) {
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super(alter);
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}
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@Override
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public String toString() {
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return "Hund, Alter: " + getAlter();
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}
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}
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//Klasse Katze, erbt von Tier
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class Katze extends Tier {
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public Katze(int alter) {
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super(alter);
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}
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@Override
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public String toString() {
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return "Katze, Alter: " + getAlter();
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}
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}
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@ -1,33 +0,0 @@
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package GUIAnwendungen.Meine_GUI_Chat;
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public class ChatFenster {
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private User user;
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private Chat_Fenster chat;
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ChatFenster(User user) {
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this.user = user;
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chat = new Chat_Fenster();
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zeigeName();
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}
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public void zeigeName() {
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chat.zeigeName(user.getName());
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}
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public User getUser() {
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return user;
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}
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public Chat_Fenster getChat() {
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return chat;
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}
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public void empfangeNachricht(String nachricht) {
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chat.sendText(nachricht);
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}
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public void sendeNachricht(String nachricht) {
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chat.sendText(user.getName() + ": " + nachricht);
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}
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}
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@ -1,27 +0,0 @@
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package GUIAnwendungen.Meine_GUI_Chat;
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import java.awt.event.ActionEvent;
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import java.awt.event.ActionListener;
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public class ChatManager implements ActionListener {
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private ChatFenster sender;
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private ChatFenster receiver;
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ChatManager(ChatFenster sender, ChatFenster receiver) {
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this.sender = sender;
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this.receiver = receiver;
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sender.getChat().getSendeNachricht().addActionListener(this);
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receiver.getChat().getSendeNachricht().addActionListener(this);
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}
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@Override
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public void actionPerformed(ActionEvent e) {
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String nachricht = sender.getChat().getEingabeNachricht().getText();
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if (!nachricht.isEmpty()) {
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sender.sendeNachricht(nachricht);
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receiver.empfangeNachricht(sender.getUser().getName() + ": " + nachricht);
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sender.getChat().getEingabeNachricht().setText("");
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}
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}
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}
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@ -0,0 +1,32 @@
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package GUIAnwendungen.Meine_GUI_Chat;
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import java.util.ArrayList;
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public class ChatRoom {
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private User user1;
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private User user2;
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ChatRoom() {
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user1 = new User("Müller");
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user2 = new User("Schneider");
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user1.getCahtfenster().getSendeNachricht().addActionListener(e -> sendeNachrichtUser1());
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user2.getCahtfenster().getSendeNachricht().addActionListener(e -> sendeNachrichtUser2());
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}
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public void sendeNachrichtUser1() {
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String nachricht = user1.getCahtfenster().getEingabeNachricht().getText();
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user1.getCahtfenster().sendeNachricht(user1.getName() + ": " + nachricht);
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user2.getCahtfenster().sendeNachricht(user1.getName() + ": " + nachricht);
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user1.getCahtfenster().getEingabeNachricht().setText("");
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}
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public void sendeNachrichtUser2() {
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String nachricht = user2.getCahtfenster().getEingabeNachricht().getText();
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user1.getCahtfenster().sendeNachricht(user2.getName() + ": " + nachricht);
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user2.getCahtfenster().sendeNachricht(user2.getName() + ": " + nachricht);
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user2.getCahtfenster().getEingabeNachricht().setText("");
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}
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}
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@ -17,15 +17,15 @@ import javax.swing.JLabel;
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public class Chat_Fenster extends JFrame {
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JPanel contentPane;
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JTextField eingabeNachricht;
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JTextArea nachrichtAnzeigen;
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JButton sendeNachricht;
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private JPanel panel;
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JLabel userName;
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JPanel contentPane;
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private JTextField eingabeNachricht;
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private JTextArea nachrichtAnzeigen;
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private JButton sendeNachricht;
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private JPanel panel;
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private JLabel user1Name;
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public Chat_Fenster() {
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setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
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setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
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setBounds(100, 100, 460, 665);
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contentPane = new JPanel();
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contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
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@ -34,11 +34,11 @@ public class Chat_Fenster extends JFrame {
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contentPane.setLayout(null);
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nachrichtAnzeigen = new JTextArea();
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nachrichtAnzeigen.setEditable(false);
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nachrichtAnzeigen.setLineWrap(true);
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nachrichtAnzeigen.setFont(new Font("Tahoma", Font.BOLD, 13));
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nachrichtAnzeigen.setForeground(new Color(0, 128, 255));
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nachrichtAnzeigen.setEnabled(false);
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nachrichtAnzeigen.setBounds(10, 11, 311, 516);
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nachrichtAnzeigen.setBounds(10, 95, 350, 432);
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contentPane.add(nachrichtAnzeigen);
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eingabeNachricht = new JTextField();
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@ -52,25 +52,27 @@ public class Chat_Fenster extends JFrame {
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panel = new JPanel();
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panel.setBackground(new Color(0, 128, 255));
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panel.setBounds(331, 11, 103, 168);
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panel.setBounds(10, 28, 350, 56);
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contentPane.add(panel);
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panel.setLayout(null);
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userName = new JLabel("New label");
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userName.setBounds(10, 11, 83, 36);
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panel.add(userName);
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user1Name = new JLabel("User1: ");
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user1Name.setForeground(new Color(255, 255, 255));
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user1Name.setFont(new Font("Tahoma", Font.BOLD, 14));
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user1Name.setBounds(10, 11, 83, 36);
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panel.add(user1Name);
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this.setVisible(true);
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}
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public void sendText(String nachricht) {
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public void sendeNachricht(String nachricht) {
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nachrichtAnzeigen.append(nachricht);
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nachrichtAnzeigen.append("\n");
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}
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public void zeigeName(String name) {
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userName.setText(name);
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user1Name.setText(name);
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}
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public JTextField getEingabeNachricht() {
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@ -81,7 +83,17 @@ public class Chat_Fenster extends JFrame {
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return sendeNachricht;
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}
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public JLabel getUser1Name() {
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return user1Name;
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}
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public void setUser1Name(String user1Name) {
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this.user1Name.setText(user1Name);
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}
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public void setEingabeNachricht(JTextField eingabeNachricht) {
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this.eingabeNachricht = eingabeNachricht;
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}
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}
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@ -1,20 +1,11 @@
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package GUIAnwendungen.Meine_GUI_Chat;
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import java.util.Scanner;
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public class Main {
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public static void main(String[] args) {
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User obai = new User("obai Albek");
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ChatFenster obai_caht = new ChatFenster(obai);
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User omar = new User("Omar Albek");
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ChatFenster omar_chat = new ChatFenster(omar);
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ChatManager test = new ChatManager(obai_caht, omar_chat);
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public static void main(String[] args) {
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}
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new ChatRoom();
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}
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}
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@ -4,39 +4,31 @@ import java.util.ArrayList;
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public class User {
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private String name;
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private int id;
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private String nachricht;
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private static int ID = 100;
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private ArrayList<String> nachrichten;
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private Chat_Fenster cahtfenster;
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public User(String name) {
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super();
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this.name = name;
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this.id = ID++;
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nachrichten = new ArrayList<>();
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this.cahtfenster = new Chat_Fenster();
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this.cahtfenster.setUser1Name(this.name);
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}
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public String getName() {
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return name;
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}
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public void setName(String name) {
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this.name = name;
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}
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public int getId() {
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return id;
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}
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public String getNachricht() {
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return nachricht;
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}
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public void setNachricht(String nachricht) {
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public void sendeNachricht(String nachricht) {
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this.nachricht = nachricht;
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}
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public Chat_Fenster getCahtfenster() {
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return cahtfenster;
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}
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}
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@ -1,4 +1,4 @@
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package GUIAnwendungen.StudentManagementSystem;
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package GUIAnwendungen.StudentManagementSystem.Domain;
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public class Student {
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@ -3,11 +3,15 @@ package GUIAnwendungen.StudentManagementSystem;
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import java.util.ArrayList;
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import java.util.Vector;
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import GUIAnwendungen.StudentManagementSystem.Domain.Student;
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public class VerwalteStudent {
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private Student student;
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private Student_login view;
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private ArrayList<Student> allStudents;
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private int index = 0;
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public VerwalteStudent() {
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this.view = new Student_login();
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view.getInsertStudent().addActionListener(e -> insert());
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@ -18,18 +22,7 @@ public class VerwalteStudent {
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allStudents = new ArrayList<>();
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}
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public void showAll() {
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if (allStudents.size() == 0)
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view.showErrore("Keine Student sind im System!");
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else {
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for (Student als:allStudents ) {
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String[] array = {als.getId()+"",als.getName(),als.getVorname(),als.getGeburtstag(),als.getGeschlecht(),als.getTele(),als.getEmail(),als.getAdresse()};
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view.getModel().addRow(array);
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}
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}
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}
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public void insert() {
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String idText = view.getEingabeId().getText();
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@ -45,9 +38,27 @@ public class VerwalteStudent {
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student = new Student(name, vorname, geschlecht, email, teleN, Adresse, geburtstag, id);
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allStudents.add(student);
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view.showInfo(student.toString());
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String[] array = {student.getId()+"",student.getName(),student.getVorname(),student.getGeburtstag(),student.getGeschlecht(),student.getTele(),student.getEmail(),student.getAdresse()};
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view.getModel().addRow(array);
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restAlleInputs();
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}
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public void showAll() {
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if (allStudents.size() == 0)
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view.showErrore("Keine Student sind im System!");
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else {
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for (Student als:allStudents ) {
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String[] array = {als.getId()+"",als.getName(),als.getVorname(),als.getGeburtstag(),als.getGeschlecht(),als.getTele(),als.getEmail(),als.getAdresse()};
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view.getModel().addRow(array);
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}
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}
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}
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public void update() {
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String idText = view.getEingabeId().getText();
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int id = Integer.parseInt(idText);
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@ -91,6 +102,7 @@ public class VerwalteStudent {
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if (student != null) {
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allStudents.remove(student);
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view.showInfo("Student wurde erfolgreich gelöscht");
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showAll();
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}
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}
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@ -118,7 +118,7 @@ public class MyGenericHashMap<K, V> {
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//Ausgabe der Elemente
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public void printAll() {
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for (Entry<?,?> temp : table) {
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for (Entry<K,V> temp : table) {
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if (temp != null) {
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System.out.println("[" + temp.key + "] :" + temp.value + " ");
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while(temp.next != null) {
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@ -134,6 +134,8 @@ public class MyGenericHashMap<K, V> {
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//Überprüft, ob der angegebene Schlüssel in der HashMap vorhanden ist.
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//Gibt true zurück, wenn der Schlüssel existiert, andernfalls false.
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public boolean containsKey(K key) {
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// hashCode(): gibt den Wert als ganzzahl zurück
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//Beispiel: 'a' => 97
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int hash = key.hashCode() % SIZE;
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Entry<K,V> temp = table[hash];
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while (temp != null) {
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@ -182,6 +184,7 @@ public class MyGenericHashMap<K, V> {
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t1.printAll();
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}
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@ -1,6 +1,5 @@
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package Hashmap;
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|
||||
import java.util.ArrayList;
|
||||
|
||||
public class MyHashMap {
|
||||
|
||||
|
|
@ -62,5 +61,7 @@ public class MyHashMap {
|
|||
Character key = 'a';
|
||||
int hash = key.hashCode();
|
||||
System.out.println(hash);
|
||||
|
||||
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -2,9 +2,9 @@ package oop.Abstraction;
|
|||
|
||||
public abstract class Auto {
|
||||
|
||||
double höhe;
|
||||
double gewicht;
|
||||
int anzahlDerRäder;
|
||||
private double höhe;
|
||||
private double gewicht;
|
||||
private int anzahlDerRäder;
|
||||
|
||||
|
||||
|
||||
|
|
@ -20,6 +20,8 @@ public abstract class Auto {
|
|||
|
||||
abstract void parkingSensors();
|
||||
|
||||
|
||||
private void print() {
|
||||
System.out.println("Hallo Welt");
|
||||
}
|
||||
|
||||
}
|
||||
|
|
|
|||
|
|
@ -8,6 +8,7 @@ public class Hatchback extends Auto {
|
|||
}
|
||||
|
||||
@Override
|
||||
|
||||
void autopilot() {
|
||||
System.out.println(" Hatchback : autopilot");
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue