private void btChange_Click(object sender, EventArgs e)
{
Elev adauga;
adauga = Alex;
Alex = Elena;
Elena = adauga;
MessageBox.Show("S-au schimbat datele");
}
public Form1()
{
InitializeComponent();
Alex = new Elev()
{
Nume = "Alex", inaltimea = 180
};
Elena = new Elev()
{
Nume = "Elena", inaltimea = 176
};
}