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Question about the task

Number of days in the year

Java Syntax, Level 4, Lesson 4

Resolved

every thing is fine but the last two conditions is not getting verified help me out! :(

Use the keyboard to enter a year, and then determine the number of days in the year. Display the result as follows:
Number of days in the year: x
, where
x is 366 for a leap year, and
x is 365 for an ordinary year.

Hint:
A leap year is 366 days, but an ordinary year is 365 days.
1) if the year is evenly divisible by 400, then it is a leap year;
2) for other years, if the year is evenly divisible by 100, then it is a regular year;
3) for other years, if the year is evenly divisible by 4, then it is a leap year;
4) all remaining years are not leap years.
Thus, the years 1700, 1800, and 1900 are not leap years, since they are multiples of 100 but not 400.
The years 1600 and 2000 are leap years, since they are multiples of 100 and multiples of 400.
The years 2100, 2200 and 2300 are not leap years.

Requirements:

The program should read a number from the keyboard.
The program should display text on the screen according to the task conditions.
If the entered year is a leap year, you should display: "Number of days in the year: 366".
If the entered year is not a leap year, you should display: "Number of days in the year: 365".

package com.codegym.task.task04.task0414; /* Number of days in the year */ import java.io.*; public class Solution { public static void main(String[] args) throws Exception { BufferedReader bor = new BufferedReader(new InputStreamReader(System.in)); String no= bor.readLine(); int num = Integer.parseInt(no); if(num % 100 != 100) System.out.println("Number of days in the year:366"); else if(num % 400 != 400) System.out.println("Number of days in the year:365"); else if(num % 4 != 0) System.out.println("Number of days in the year:366"); else System.out.println("Number of days in the year:365"); } }

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dhanush

Level 30 , Chennai, India

24 May 2020, 06:03

Thank u gellert for helping me i have solved the problem :)

Gellert Varga

Level 23 , Szekesfehervar, Hungary

23 May 2020, 21:54

1) This line is correct: if(num % 4 != 0); But this line is wrong: if(num % 100 != 100); // maybe this way: .... != 0); And this is also wrong: num % 400 != 400 2) The task says: "if the year is evenly divisible by 400, then it is a leap year" But your program says the opposite: if(num % 400 != 400) System.out.println("Number of days in the year:365"); 3) Perform the condition-testings in your program in the same order as they are listed in the task description. Logically, this is the only way to get the right result. So, the first condition: dividing by 400, second: dividing by 100, third: dividing by 4.