Answer:
public static String repeat(String text, int repeatCount) {
if(repeatCount < 0) {
throw new IllegalArgumentException("repeat count should be either 0 or a positive value");
}
if(repeatCount == 0) {
return "";
} else {
return text + repeat(text, repeatCount-1);
}
}
Explanation:
Here repeatCount is an int value.
at first we will check if repeatCount is non negative number and if it is code will throw exception.
If the value is 0 then we will return ""
If the value is >0 then recursive function is called again untill the repeatCount value is 0.
Input:-
Output:-
The loop will start from 7×2=14 to 16×2=32
C. Provides an interface between user and OS.
The GUI, or Graphical User Interface, is just about everything you generally see with a common computer or smartphone. You rarely run an application or program from the command itself, as clicking an icon in the GUI runs the software for you.
