Question

I have a GUI setup with with buttons on them and a JTextArea.

I also have an array of Strings with say size of 3.

What I want to do is use an action listener in a way that when the button called “next” is pressed, the JTextArea will then show the next cell in the array. The only problem is it displays the array at the same time. I need it to display the next cell when the button is hit

Can anyone help me with the code? Please and thank you.

 final ActionListener m2 = new ActionListener() {
    @Override
    public void actionPerformed(ActionEvent e) 
    { 
        arr = new String[3];
        arr[0]= "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa";      
        arr[1]= "sssssssssssssssssssssss";
        arr[2]= "xxxxxxxxxxxxxxxxxxxxx";

        for (int i = 0; i<arr.length; i++){
        text.append(arr[i]);
        }
    }
};

next.addActionListener(m2);

Answer 1

So the basic concept is. You need a index value to maintain the current index of the array that is being displayed.

From there, each time the user clicks next, you would increment the index and display the next value in the String

public void actionPerformed(ActionEvent e) {

    currentIndex++;
    // You need to decide what to do when we reach the end of the array...

    String value = myStrings[currentIndex];
    textArea.setText(value);

}