You are given a variable named zipcode_list that has been defined and refers to a list of postal codes. write some code that assigns true to duplicates if any two elements in the list have the same value, but that otherwise assigns false to duplicates. you may, if you wish, use two other variables, j and k. use only j, k, zipcode_list, and duplicates.

Acommon algorithm for converting a decimal number to binary is to repeatedly divide the decimal number by 2 and save the remainder. this division is continued until the result is zero. then, each of the remainders that have been saved are used to construct the binary number.write a recursive java method that implements this algorithm.it will accept a value of int and return a string with the appropriate binary character representation of the decimal number.my code: public class lab16{public string converttobinary(int input){int a; if(input > 0){a = input % 2; return (converttobinary(input / 2) + "" +a); } return ""; } }