This exercise asks you to extend the MyDate class by advancing it one day, many days, and creating a new MyDate class.
My Code
Main
public class Main {
public static void main(String[] args) {
MyDate day = new MyDate(25, 2, 2011);
MyDate newDate = day.afterNumberOfDays(7);
for (int i = 1; i <= 7; ++i) {
System.out.println("Friday after " + i + " weeks is " + newDate);
newDate = newDate.afterNumberOfDays(7);
}
System.out.println("This week's Friday is " + day);
System.out.println("The date 790 days from this week's Friday is " + day.afterNumberOfDays(790));
}
}MyDate
public class MyDate {
private int day;
private int month;
private int year;
public MyDate(int day, int month, int year) {
this.day = day;
this.month = month;
this.year = year;
}
public String toString() {
return this.day + "." + this.month + "." + this.year;
}
public boolean earlier(MyDate compared) {
if (this.year < compared.year) {
return true;
}
if (this.year == compared.year && this.month < compared.month) {
return true;
}
if (this.year == compared.year && this.month == compared.month
&& this.day < compared.day) {
return true;
}
return false;
}
public void advance(){
this.day++;
if (this.day == 31){
this.day = 1;
this.month++;
if (this.month == 13){
this.month = 1;
this.year++;
}
}
}
public void advance(int numberOfDays){
int i = 0;
while (i < numberOfDays){
this.advance();
i++;
}
}
public MyDate afterNumberOfDays(int days){
MyDate newMyDate = new MyDate(this.day, this.month, this.year);
// some code here
newMyDate.advance(days);
return newMyDate;
}
}
Model Code
Main
public class Main {
public static void main(String[] args) {
MyDate day = new MyDate(25, 2, 2011);
MyDate newDate = day.afterNumberOfDays(7);
for (int i = 1; i <= 7; ++i) {
System.out.println("Friday after " + i + " weeks is " + newDate);
newDate = newDate.afterNumberOfDays(7);
}
System.out.println("This week's Friday is " + day);
System.out.println("The date 790 days from this week's Friday is " + day.afterNumberOfDays(790));
}
}MyDate
public class MyDate {
private int day;
private int month;
private int year;
public MyDate(int day, int month, int year) {
this.day = day;
this.month = month;
this.year = year;
}
public String toString() {
return this.day + "." + this.month + "." + this.year;
}
public boolean earlier(MyDate compared) {
if (this.year < compared.year) {
return true;
}
if (this.year == compared.year && this.month < compared.month) {
return true;
}
if (this.year == compared.year && this.month == compared.month
&& this.day < compared.day) {
return true;
}
return false;
}
public void advance() {
this.day = this.day + 1;
if (this.day > 30) {
this.month = this.month + 1;
this.day = 1;
if (this.month > 12) {
this.year = this.year + 1;
this.month = 1;
}
}
}
public void advance(int numberOfDays) {
int laskuri = 0;
while (laskuri < numberOfDays) {
this.advance();
laskuri = laskuri + 1;
}
}
public MyDate afterNumberOfDays(int days) {
MyDate date = new MyDate(this.day, this.month, this.year);
int counter = 0;
while (counter < days) {
date.advance();
counter = counter + 1;
}
return date;
}
}Comments
I think that all worked out better than expected.