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Given an integer choice denoting the choice of the user and a list containing the single value R or two values L and B depending on the choice.

If the user's choice is 1, calculate the area of the circle having the given radius(**R**).

Else if choice is 2, calculate the area of the rectangle with given length(**L**) and breadth(**B**).

**Example 1:**

**Input:**
choice = 1,
R = 5
**Output:** 78.53981633974483
**Explaination:** The choice is 1.
So we have to calculate the area of the circle.

**Example 2:**

**Input:**
choice = 2,
L = 5, B = 10
**Output:** 50
**Explaination:** Here we have to calculate the
area of the rectangle.

**Your Task:**

You do not need to read input or print anything. Your task is to complete the function **switchCase()** which takes choice and a list arr[], containing the single value R or the two values L and B, as input parameters. It should return area of the desired geomatrical figure.

**Note:** Use Math.PI for the value of pi.

**Expected Time Complexity:** O(1)

**Expected Auxiliary Space:** O(1)

**Constraints:**

1 ≤ R, L, B ≤ 100

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Java Switch Case statement

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