How preferred size of JAVA GUI is calculated when the parent component is invisible?

Hi
Suppose a Panel has a tabbed pane with two tabs inside it. If I do setVisible(false) for 2nd tab but not for its child components,
Will the size of child component's of 2nd tab be considered to calculate the preferred size of the TopPanel ?
Similarly, If a Panel has a sub-panel and sub-panel has few child components. If sub-panel is invisible but its child components are visible, they will not be shown on the screen.
In this case, Will the sizes of sub-panel's child components be considered for calculating the preferred size of the outer panel ?
Please let me know
Thanks in advance.

Are you talking about Java or another language?
However, when I run this report, JVM tries to allocate these 10 MB objects, but causes an Allocation Failure (AF). Java does get such an error. It can get an OutOfMemoryError.
At this point, the unusable heap size due to fragmentation is ~100 MB. Again Java doesn't get unusable heap space as the GC will repack the memory to remove fragmentation.
- is 10 MB object size okay? Is it normal to have object size of 10 MB?In Java it is normal.
- How can I reduce the fragmentation in the memory?Use Java.

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