********* implements ActionListener
{
//加个方法:
public void actionPerformed(ActionEvent e)
{
if(e.getSource().equeals(bt1))
{
if(tf1.getText().equeals(""))
{
//your code
}
if(Itegerge.parseInt(tf2.getText())>0)
{
//your code
}
}
}
}在bt1上加
bt1.addActionListner(this);
{
//加个方法:
public void actionPerformed(ActionEvent e)
{
if(e.getSource().equeals(bt1))
{
if(tf1.getText().equeals(""))
{
//your code
}
if(Itegerge.parseInt(tf2.getText())>0)
{
//your code
}
}
}
}在bt1上加
bt1.addActionListner(this);
应该是
Integer
public void init()
里就行
bt1.addActionListener(bt1);(.号处抱错)