JGRASP Only (Java) B03 – Multiply even digits Write a programthat will ask the user for a number, and then recursively computesthe multiplication of every even number that is less than the givennumber. That is, if the user enters 13, your program wouldrecursively compute 12*10*8*6*4*2. Hint: Define the followingmethod: public static long computeMultiplication(int n) Note:Validate the user input to make sure the entered number is apositive integer. Otherwise, keep asking the user for a numberuntil the input is valid.
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