Why should we add the components of JAppet to Container object ?

Question

why should we add the components of JAppet to Container object ? Because we are able to run the program by adding the components to the JApplet directly without using any container objects. Both with using and without using container to add components are giving the same outputs. So why we need to add them to container ? Thanks for all replying

Answer 1

we are able to run the program by adding the components to the JApplet directly without using any container objectsSort of true. JApplet does have an add() method. And you can use that method rather than using getContentPane() and adding things to the Container it returns. But this method does not add things to the applet "directly without using any container objects".
The [API documentation|http://java.sun.com/javase/6/docs/api/javax/swing/JApplet.html] explains: "JApplet contains a JRootPane as its only child. The contentPane should be the parent of any children of the JApplet. As a convenience add and its variants, remove and setLayout have been overridden to forward to the contentPane as necessary. This means you can write:
{code}
applet.add(child);
{code}
And the child will be added to the contentPane. The contentPane will always be non-null. Attempting to set it to null will cause the JApplet to throw an exception"