How to increase a value in JTextField

Question

I have JTextField and I want to increase the value by adding one (+1) every time the JButton is pressed.

public void addtoj()
{
    String m = jTextField1.getText();
    int addone = Integer.valueOf(s);
    s = Integer.toString(++addone);
    jTextField1.setText(m);
}

Answer 1

If I understand you, then it should be s not m , like so -

String s = jTextField1.getText(); // <-- s not m.
int addone = Integer.valueOf(s);
s = Integer.toString(++addone);
jTextField1.setText(s); // <-- s not m.

Or maybe it should be,

String m = jTextField1.getText();
int addone = Integer.valueOf(m);
jTextField1.setText(String.valueOf(addone+1));

Answer 2

public void addtoj()
{
    String text = jTextField1.getText();        

    int value = Integer.parseInt(text); 

    value = value + 1;      

    text = Integer.toString(value); 

    jTextField1.setText(text);
}

Or

public void addtoj()
{
    jTextField1.setText(
        Integer.toString( Integer.parseInt(jTextField1.getText()) + 1 ));
}

Answer 3

I don't know if I understand you well if I didn't please forgive me to make it : in ActionListenerclass write this:

float s = (float) Double.parseDouble(theTextField.getText());
int counter = 0;
counter++;
theTextField.setText("" + counter);