Write a class named problem$3$ In main method of this class, ask the user for an integer and check whether this integer is a perfect number or not. Display true if yes, false otherwise. A perfect number, a positive integer that is equal to the sum of its proper divisors. The smallest perfect number is $6,$ which is the sum of $1,2,$ and $3.$ Other perfect numbers are $28,496,$ and $8,128.1.$ with for loop $(10$ pts$)2.$ with while loop $(10$ pts$)3.$ with do$-$while, respectively