@return true if overlap, false otherwise

$*\frac{*}{?}$

public boolean overlaps$($Circle$2$DBig circle$)$

$\{$

$//$write code

$\}$

return false;

private static BigDecimal distance$($BigDecimal x$1,$ BigDecimal y$1,$ BigDecimal x$2,$ double y$2)$

$\{$

$//$write code

$\}$

return null;

$\frac{?}{?}****$

Returns the area of the circle.

@return the area of the circle.

$*/$

public BigDecimal getArea$()$

$\{$

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$\}$

return null;

$\frac{?}{?}****$

Returns the perimeter of the circle.

@return the perimeter of the circle.

$*/$

public BigDecimal getPerimeter$()$

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return null;

$\}$

$/**$

Sort the array in ascending order by perimeter size.

@param ar the array to used for sorting, not altered.

@return a new new sorted array;

$*/$

public static Circle$2$DBig$[]$ sortCirclesByPerimeter$($Circle$2$DBig$[]$ ar$)$

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