private Statement readPS()
{
PrintStatement ps = new PrintStatement();
Console.WriteLine("Input expression:");
ps.setE(readExpression());
return(ps);
}
void ButtonPrintStatementClick(object sender, EventArgs e)
{
PrintStatement ps = new PrintStatement();
using (ExpressionForm expF = new ExpressionForm())
{
if (expF.ShowDialog() == System.Windows.Forms.DialogResult.OK)
{
ps.setE(expF.getExpression());
this.stmt = ps;
finished();
}
}
}