Bad operand types??

package com.codegym.task.task04.task0416; /* Crossing the road blindly */ import java.io.*; public class Solution { public static void main(String[] args) throws Exception { float t; float result; InputStream inputStream=System.in; Reader inputStreamReader=new InputStreamReader(inputStream); BufferedReader bufferedReader=new BufferedReader(inputStreamReader); String time=bufferedReader.readLine(); t = Float.parseFloat(time); result=time%5.0; if(result <3) System.out.println("green"); else if(result <4) System.out.println("yellow"); else { System.out.println("red"); } }