Integer parts (with.Java)

This is a post about the “integer partials” problem.

We’re going to learn about it by solving coding test problems, reflecting on the problems we’ve solved, and exploring other ways to solve them.

Let’s start with the problem.

Problem

Complete the solution function so that, given a real number flo as a parameter, it returns the integer part of flo.

Example input and output

My solution to the problem

class Solution {
    public int solution(double flo) {
        int answer = (int) flo;
        return answer;
    }
}

Solution Explained

To convert a float value to an int value, you must use explicit casting.

When converting from a float value to an int value, decimal values are discarded. In Java, we use (int) to perform the cast.

See ######

Casting can cause data loss, so you should be careful. If you want to preserve decimal values, you should use rounding or other methods.