How to change the value of a jLabel with a jButton (Netbeans)

Question

I’m a beginner in Java, and I want to create a supposedly very simple program. Inside a panel there is only a jlabel and a jbutton. jLabel has the value "0". When Clicking on jbutton, the idea is that it increases a number with each click on jButton.

Answer 1

botao.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { jlabel.setText(Integer.parseInt(jlabel.getText()) + 1); } } );

I’m not sure if this function is correct as I haven’t opened the IDE for Ester.

However, it is not difficult to do what you want, pass the function to it to execute when you press a similar button in the example above. within the function is only to give a setText on that jlabel of yours, passing the text of it not forgetting to convert to integer and incrementing 1. ready :)

Answer 2

I managed to fix it. I leave it here for those who need it too:

private int senha = 0;

    private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {                                         
        if(senha == 50){
            JOptionPane.showMessageDialog(null,"Limite de Senhas já entregue.");
        } else{
            senha++;
            this.jLabel1.setText(senha+"");
        }
    }