int in java means integer but POSITIVE always ?
In GUI&Graphics in JAVA JPanel is always subarea of JFrame and can contain both graphics or eg form controls ?
JPanel is below in class hierarchy than JFrame, is it direct subclass of it ?
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int in java means integer but POSITIVE always ?
In GUI&Graphics in JAVA JPanel is always subarea of JFrame and can contain both graphics or eg form controls ?
JPanel is below in class hierarchy than JFrame, is it direct subclass of it ?