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AWT

 
Greenhorn
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can you explain the result of this code??
In the following applet, how many Buttons will be displayed?

1: import java.applet.*;
2: import java.awt.*;
3:
4: public class Q16 extends Applet
5: {
6: Button okButton = new Button("Ok");
7:
8: public void init()
9: {
10: add(okButton);
11: add(okButton);
12: add(okButton);
13: add(okButton);
14:
15: add(new Button("Cancel"));
16: add(new Button("Cancel"));
17: add(new Button("Cancel"));
18: add(new Button("Cancel"));
19:
20: setSize(300,300);
21: }
22: }
A) 1 Button with label "Ok" and 1 Button with label "Cancel" .
B) 1 Button with label "Ok" and 4 Buttons with label "Cancel" .
C) 4 Buttons with label "Ok" and 1 Button with label "Cancel" .
D) 4 Buttons with label "Ok" and 4 Buttons with label "Cancel" .

THE Answer is B.
 
Ranch Hand
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AWT doesn't allow you to add the same instance of a component to more than one location in a layout. That's why the OK button is only added the first time. The Cancel buttons on the other hand, aren't the same instance, they just happen to have the same titles.
 
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