垂直十六进制到ASCII Java

Question

Situation:

I have a GUI where i already convert a horizontal Hex into ASCII... But now i want to convert a vertical Hex to ASCII.

Does anyone have some ideas how i can solve this?

I already splited it:

vert.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent e) {
            fintext5.setText("");

            String[] test = entertext3.getText().split("\\n");
            for(int i = 0; i<test.length; i++){
                System.out.prinln(test[i]);
            }
         }
    });

Code for horizontal Hex:

button5.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent e) {
            fintext5.setText("");
            String readout = entertext3.getText().replace(" ", "").replace("\n", "");

            StringBuilder output = new StringBuilder("");               
            for (int i = 0; i < readout.length(); i += 2)
            {
                String str = readout.substring(i, i + 2);
                output.append((char) Integer.parseInt(str, 16));
            }
            fintext5.append(output.toString());
        }
    });

Example for vertical Hex(41 42 43 44 45 46):

4 4 4
1 2 3
4 4 4
4 5 6

Answer 1

You're getting so lost, I'll just give you a working starting point:

vert.addActionListener(new ActionListener() { 
    public void actionPerformed(ActionEvent e) {
        ausgabe5.setText(""); 
        String[] test = eingabe3.getText().split("\\n"); 
        StringBuilder output = new StringBuilder();
        for (int i = 0; i < test.length; i += 2) {
            for (int j = 0; j < test[i].length(); j++) {
                String hex = "" + test[i].charAt(j) + test[i + 1].charAt(j);
                output.append((char)Integer.parseInt(hex,16));
            }
        }
        System.out.println(output.toString());
    } 
}); 

Please look it over and ask about anything you don't understand.