getText() method doesn't work with integers

Question

textfield2.addActionListener(new ActionListener()
{
    public void actionPerformed(ActionEvent actionevent)
    {
        String input = textfield2.getText();
        Output2.setText("Your age is " + (2017-input));
    }
});

button2.addActionListener(new ActionListener()
{
    public void actionPerformed(ActionEvent actioneven)
    {
        String input = textfield2.getText();
        Output2.setText("Your age is " + (2017 -input));
    }
});

I am trying to get a number from the user (an integer) and subtract that number from 2017. It gives an error saying that it is a String and I can't subtract a number from a String. When I change String input to int input it gives errors again. It says that I can't use getText(). I've tried few ways such as parseInt() and it did not work. How can I fix this problem?

My Question is different from How to convert a String to an int in Java? because I looked at the answers there and they didn't really work with my code.

Did you try similar to this `(2017 -Integer.parseInt(input))`? — Kaustubh Khare, Nov 16 '17 at 07:13

score 1 · Accepted Answer · answered Nov 16 '17 at 07:15

1

You must convert the String obtained from the TextField to Integer

You can do that by

Integer.parseInt(string);
Integer.valueOf(string);

In you case you can do like this.

 Output2.setText("Your age is " + (2017 - Integer.parseInt(input)));

or

Output2.setText("Your age is " + (2017 - Integer.valueOf(input)));

answered Nov 16 '17 at 07:15

Sreeram TP

11,346
7
54
108

Thank you so much, it worked, you helped me a lot. I was using parseInt() wrong. – Edmon Ghazaryan Nov 16 '17 at 07:23
Happy to hear. Accept the answer if it worked.!! – Sreeram TP Nov 16 '17 at 07:24

score 1 · Answer 2 · answered Nov 16 '17 at 07:21

1

You need to parse the input first before subtracting it

int input = Integer.parseInt(textfield2.getText());
Output2.setText("Your age is " + (2017 -input));

answered Nov 16 '17 at 07:21

Sean Ervinson

123
3
12

Thanks a lot, it really helped and solved my problem. – Edmon Ghazaryan Nov 16 '17 at 07:28
Glad I could help – Sean Ervinson Nov 16 '17 at 07:36

getText() method doesn't work with integers

2 Answers2