In this program, we will read the number of days from the user and convert them into years, weeks, days.

Program/Source Code:

The source code to convert a given number of days into days, weeks, and years is given below. The given program is compiled and executed successfully.

// Java program to convert a given number of days 
// into days, weeks, and years

import java.util.Scanner;
public class Main {

  public static void main(String[] args) {
    int ndays = 0;
    int years = 0;
    int weeks = 0;
    int days = 0;

    Scanner X = new Scanner(System.in);

    System.out.print("Enter days: ");
    ndays = X.nextInt();

    years = ndays / 365;
    weeks = (ndays % 365) / 7;
    days = (ndays % 365) % 7;

    System.out.printf("%d years, %d weeks and %d days\n", years, weeks, days);
  }
}

Output:

Enter days: 567
1 years, 28 weeks and 6 days

Explanation:

In the above program, we imported the "java.util.Scanner" package to read input from the user. And, created a public class Main. It contains a static method main().

The main() method is an entry point for the program. Here, we read the number of days from the user using the Scanner class. Then we converted them into years, weeks, and days. After that, we printed the result.