CODEWITHSUNDEEP
javaarraysswingjtextfield
suhanasirr
suhanasirr

Reputation: 1

How to add user input from text field into an array?

I am trying to add the user input from the text field into an array when I click the Add Button. The Display Button displays the whole array. I already initialized the array (array = new String[10]) else where in the program. I initialized the counter to 0 as a private variable. If the user enters more than 10 strings, the input should not be added. Any advice?

    // if add button is clicked
    if (e.getSource() == btnAdd){

        /*input = textInput.getText();
        output = textOutput.getText() + input + "\n";
        textOutput.setText(output);*/

        // get user input from text field
        input = textInput.getText();  

        // clear text input field
        textInput.setText("");

        /*do {

            array[counter] = input;
            counter++;

        } while (counter < 11);

        if (counter > 10){

            picBottom = new TextPicture(new String("No Space Available"), new Font("TimesRoman", Font.ITALIC, 30), new Color(0));
            picBottom.setC(Color.RED);
        }*/

        // add user input to array if counter is within array length
        if (counter <= 10){

            array[counter] = input;
            counter++;
        }

        // display no more space available if counter is outside of array length
        else {

            picBottom = new TextPicture(new String("No Space Available"), new Font("TimesRoman", Font.ITALIC, 30), new Color(0));
            picBottom.setC(Color.RED);
        }
    }

    // if display button is clicked
    else if (e.getSource() == btnDisplay){

        // go through array & display each string
        for (int i = 0; i <= counter; i++){

            output += array[i];
            textOutput.setText(output);
        }
    }

Upvotes: 0

Views: 2419

Answers (1)

Steffi
Steffi

Reputation: 331

Here you have a minimum example:

JFrame frame = new JFrame("Test");
frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
frame.setBounds(100, 100, 300, 300);

JPanel panel = new JPanel();
panel.setPreferredSize(new Dimension(300, 150));

JTextField txtField = new JTextField("");
txtField.setPreferredSize(new Dimension(200, 30));

JButton button = new JButton("Push me");
button.addActionListener((ActionEvent arg0) -> {
    if(counter < 10){
        array[counter] = txtField.getText();
        counter++;
        txtField.setText("");
        txtField.requestFocus();
    }
    else{
        System.out.println("No Space Available");
    }


    System.out.println(Arrays.toString(array));
});
panel.add(txtField);
panel.add(button);

frame.add(panel);
frame.setVisible(true);

Upvotes: 1

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