What's wrong with my code? I seem to satisfy all the requirements but it won't give me all the check marks.

Question about the task

Under discussion

import java.io.*; public class Solution { public static void main(String[] args) throws Exception { BufferedReader reader = new BufferedReader(new InputStreamReader(System.in)); double num = Double.valueOf(reader.readLine()); double time = num % 5; if (time <= 2.99 && time >= 0) System.out.println("green"); else if (time <= 3.99 && time >= 3) System.out.println("yellow"); else if (time <= 4.99 && time >= 4) System.out.println("red"); else System.out.println("green"); } }

The pedestrian traffic light is programmed as follows:
at the beginning of each hour, the green signal is on for three minutes,
then the signal is yellow for one minute,
and then it is red for one minute.
Then the light is green again for three minutes, etc.
Use the keyboard to enter a real number t that represents the number of minutes that have elapsed since the beginning of the hour.
Determine what color the traffic light is at the specified time.
Display the result as follows:
"green" if the light is green,
"yellow" if the light is yellow, and
"red" if the light is red.

Example for 2.5:
green
Example for 3:
yellow
Example for 4:
red
Example for 5:
green

Requirements:

The program should read a real number from the keyboard.
The program should display text on the screen.
If the light is green, display: "green"
If the light is yellow, display: "yellow"
If the light is red, display: "red"

package com.codegym.task.task04.task0416; /* Crossing the road blindly */ import java.io.*; public class Solution { public static void main(String[] args) throws Exception { BufferedReader reader = new BufferedReader(new InputStreamReader(System.in)); double num = Double.valueOf(reader.readLine()); double time = num % 5; if (time <= 2.9999 && time >= 0) System.out.println("green"); else if (time <= 3.9999 && time >= 3) System.out.println("yellow"); else if (time <= 4.9999 && time >= 4) System.out.println("red"); else System.out.println("green"); } }

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Guadalupe Gagnon

Level 37 , Tampa, United States

28 July 2021, 17:22

What if I wanted to find out what 3.99999 would be? This code output "green" but the correct answer would be "yellow".

Jomar Tayactac

Level 5 , Winnipeg, Canada

Expert

29 July 2021, 18:58

Thanks, I revised my code and it worked. import java.io.*; public class Solution { public static void main(String[] args) throws Exception { BufferedReader reader = new BufferedReader(new InputStreamReader(System.in)); double num = Double.valueOf(reader.readLine()); double time = num % 5; if (time < 3 && time >= 0) System.out.println("green"); else if (time < 4 && time >= 3) System.out.println("yellow"); else if (time < 5 && time >= 4) System.out.println("red"); else System.out.println("green"); } }