Hi i want to be able to automatically activate a JButton and run the commands under that button when new button 'All Targets' is selected.

I have the following code, can anyone help?

Code:
JButton all_tar = new JButton ("All Targets");
all_tar.addActionListener(this);
JButton calcuate = new JButton ("Calculate");
calculate.addActionListener(this);

if (arg == "All Targets")
        {
            for (m = 100; m < 1000; m++)
            {
                tgetbox.setText(" " + (int)(m));
                target = m;
                
                //here is where i want to automatically activate another button
                
            }
        }

if (arg == "Calculate") //this is the button that i want to automatically activate numerous times 

{ //instructions
}