[3945] in java-interest
I need help with Java Beta Adding
daemon@ATHENA.MIT.EDU (Jonathan_Mark_Smith@CCMAIL.PRUSEC.)
Tue Dec 5 02:39:51 1995
From: Jonathan_Mark_Smith@CCMAIL.PRUSEC.COM
Date: Mon, 04 Dec 95 11:11:31 EST
To: java-interest@java.sun.com
The following example should add on two fields and put the total into the total
field. Can someone please tell me how to get this to work?
import java.awt.*;
import java.applet.*;
public class Test extends Applet
{
Panel infobar;
Panel mainbar;
TextField exp1;
TextField exp2;
TextField total;
public void init()
{
setLayout(new BorderLayout());
setBackground(Color.gray);
setFont(new Font("Helvetica", Font.BOLD, 12));
}
public void start()
{
Panel p = new Panel();
p.setLayout(new GridLayout(2,2));
p.add(exp1 = new TextField("10", 30));
p.add(exp2 = new TextField("15",30));
p.add(total = new TextField("",30));
mainbar = new Panel();
mainbar.setLayout(new BorderLayout());
mainbar.add("West", p);
add("Center", mainbar);
infobar = new Panel();
infobar.add(new Button("Add the Fields"));
infobar.add(new Button("Clear all Fields"));
infobar.add(new Button("Reset all Fields"));
infobar.setBackground(Color.red);
add("South", infobar);
}
public boolean action(Event evt, Object arg)
{
if("Add the Fields".equals(arg))
{
total.settext(exp1.toString + exp2.toString);
return true;
}
else if("Clear all Fields".equals(arg))
{
exp1.setText("");
exp2.setText("");
total.setText("");
return true;
}
else if("Reset all Fields".equals(arg))
{
exp1.setText("10");
exp2.setText("15");
total.setText("");
return true;
}
else if(evt.target instanceof Choice)
{
showStatus(arg.toString());
return true;
}
return false;
}
}
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