Write a code fragment that puts the binary representation of a positive integer n into a String variable s. Solution. Java has a built-in method Integer. To Binary String(n) for this job, but the...

Write a code fragment that puts the binary representation of a positive integer n into a String variable s.

Solution. Java has a built-in method Integer. To Binary String(n) for this job, but the point of the exercise is to see how such a method might be implemented. Working from Program 1.3.7, we get the solution

A simpler option is to work from right to left:

Both of these methods are worthy of careful study.

Program 1.3.7