Package net.n1da.dev.euler

Class PE0019

java.lang.Object

net.n1da.dev.euler.core.Problem

net.n1da.dev.euler.PE0019

All Implemented Interfaces:

Solvable

public class PE0019
extends Problem

Solution for problem 19 "Counting Sundays" completed on Sat, 23 May 2015, 23:06.

Since:

23.05.2015 22:42:18

Author:

Nico Danneberg

See Also:

Problem @ Project Euler, Solution @ Ni-Da-Net

Field Summary

Fields

Modifier and Type	Field	Description
private int[]	DaysInMonth	Stores the number of days for every month.

Fields inherited from class net.n1da.dev.euler.core.Problem

number, title

Constructor Summary

Constructors

Constructor	Description
PE0019()	A simple constructor to set number and title.

Method Summary

Modifier and Type	Method	Description
void	prepare()	Here the DaysInMonth are initialized.
java.lang.String	solve()	Starting at Monday, 1.1.1900 it runs a loop by incrementing the current day of month and weekday.

Methods inherited from class net.n1da.dev.euler.core.Problem

finish, getResult, getRuntime, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

DaysInMonth

private int[] DaysInMonth

Stores the number of days for every month.

Constructor Detail

PE0019

public PE0019()

A simple constructor to set number and title.

Method Detail

prepare

public void prepare()

Here the DaysInMonth are initialized.

Specified by:

prepare in interface Solvable

Overrides:

prepare in class Problem

solve

public java.lang.String solve()

Starting at Monday, 1.1.1900 it runs a loop by incrementing the current day of month and weekday. If weekday equals 6 (Sunday) and the day of month it the first, the day is counted.

Returns:

the number of Sundays that are the 1st of a month