java - 当有人未​​能输入正确的密码时，如何使对话框显示？

Question

好吧，这是我需要工作的代码，我认为其余的可能无关紧要。

private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {                                         
    int failT = 1;
    String answer = pass.getText(); 
    if (answer.equals(password)){
        System.out.println("CORRECT!!");

        pass.setText("");
    }
    else {
        failT =+ 1;
        pass.setText("");
        if (failT >= 3){
            JOptionPane.showMessageDialog(null, "SORRY, you have failed 3 times goodbye");
        }
    }
}             

Answer 1

我认为你应该更换

failT =+ 1;

与

failT += 1;