Equazioni di primo grado

App that solves first-degree equations.

Here is the embryonic version to be finished but already working that receives 2 inputs and calculates X.
The exercise is useful for learning how to use swing objects and associated methods. The code is in the click event of the button

private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) { double a, b,x; String tmp; tmp =jTextField1.getText(); a=Double.parseDouble(tmp); tmp =jTextField2.getText(); b=Double.parseDouble(tmp); x=-b/a; jTextArea1.setText("Il risultato di "+a+"x+"+b+"=0" +" x="+x); }