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package algorithmus;
import java.awt.TextField;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.ArrayList;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JSpinner;
public class Caesar extends Algorithmus {
private String name;
private char[] chars;
private int v;
public Caesar() {
name = "Caesar";
chars = new char[] { 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z',
'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z',
'0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
'Ä', 'Ö', 'Ü', 'ä', 'ö', 'ü', 'ß', ' '};
v = 13;
}
public void options() {
JFrame frame = new JFrame();
frame.setLayout(null);
frame.setTitle("Caesar");
frame.setSize(200, 150);
TextField alphabet = new TextField();
String alphaText = "";
for(int i = 0; i<chars.length; i++) {
alphaText += chars[i];
}
alphabet.setText(alphaText);
alphabet.setBounds(5, 5, 150, 20);
JLabel label = new JLabel("Verschiebung:");
label.setBounds(5, 30, 100, 20);
JSpinner spinner = new JSpinner();
spinner.setBounds(100, 30, 50, 20);
spinner.setValue(v);
JButton apply = new JButton("Speichern");
apply.setBounds(5, 55, 100, 20);
apply.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
String alpha = alphabet.getText();
chars = new char[alpha.length()];
for(int i = 0; i<chars.length; i++) {
chars[i] = alpha.charAt(i);
}
v = (int) spinner.getValue();
}
});
frame.add(alphabet);
frame.add(label);
frame.add(spinner);
frame.add(apply);
frame.setVisible(true);
}
public String getName() {
return name;
}
public String encode(String input) {
String out = "";
for(int i = 0, size = input.length(); i<size; i++) {
for(int x = 0; x<chars.length; x++) {
if(chars[x] == input.charAt(i)) {
out += chars[(x + v) % chars.length];
}
}
}
return out;
}
public String decode(String input) {
String out = "";
int pos = 0;
for(int i = 0, size = input.length(); i<size; i++) {
for(int x = 0; x<chars.length; x++) {
if(chars[x] == input.charAt(i)) {
pos = (x - v);
if(pos<=0)
pos += chars.length;
out += chars[pos % chars.length];
}
}
}
return out;
}
}
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