Haz un calendario que te liste los días del año según el día que empezó ese año, según si es bisiesto o no, y teniendo en cuenta de que cada semana se salta de línea.
import java.util.*;
public class HelloWorld{
public static void main(String []args){
Scanner anio = new Scanner(System.in);
int anno;
Scanner dio = new Scanner(System.in);
int dia;
Scanner dias = new Scanner(System.in);
String seman;
System.out.println ("Que anno buscas?");
anno = anio.nextInt();
System.out.println ("Si lunes fuese -1, martes 0, miercoles 1 y etc, que dia empezo el anno?");
dia = dio.nextInt();
System.out.println("Que dia comenzo ese anno?");
seman = dias.nextLine();
if (seman.equals("lunes")){
int seman2 = -1;
}else if (seman.equals("martes")){
int seman2 = 0;
System.out.print (" ");
}else if (seman.equals("miercoles")){
int seman2 = 1;
System.out.print (" ");
}else if (seman.equals("jueves")){
int seman2 = 2;
System.out.print (" ");
}else if (seman.equals("viernes")){
int seman2 = 3;
System.out.print (" ");
}else if (seman.equals("sabado")){
int seman2 = 4;
System.out.print (" ");
}else if (seman.equals("domingo")){
int seman2 = 5;
System.out.print (" ");
}
if (anno % 4 == 0 && anno % 400 == 0){
for (int i=1; i<=31; i++){
int mes = i + dia;
if (mes%7 == 0){
System.out.println ("");
}
if (i<10){
System.out.print (" 0" +i);
}else if (i >= 10 && i <= 31){
System.out.print (" " +i);
}
}
for (int i=1; i<=29; i++){
int mes2 = 31 + i + dia;
if (mes2%7 == 0){
System.out.println ("");
}
if (i<10){
System.out.print (" 0" +i);
}else if (i >= 10 && i <= 31){
System.out.print (" " +i);
}
}for (int i=1; i<=31; i++){
int mes3 = 29 + 31 + i + dia;
if (mes3%7 == 0){
System.out.println ("");
}
if (i<10){
System.out.print (" 0" +i);
}else if (i >= 10 && i <= 31){
System.out.print (" " +i);
}
}for (int i=1; i<=30; i++){
int mes4 = 29 + 31 + 31 + i + dia;
if (mes4%7 == 0){
System.out.println ("");
}
if (i<10){
System.out.print (" 0" +i);
}else if (i >= 10 && i <= 31){
System.out.print (" " +i);
}
}for (int i=1; i<=31; i++){
int mes5 = 29 + 31 + 31 + i + dia + 30;
if (mes5%7 == 0){
System.out.println ("");
}
if (i<10){
System.out.print (" 0" +i);
}else if (i >= 10 && i <= 31){
System.out.print (" " +i);
}
}for (int i=1; i<=30; i++){
int mes6 = 29 + 31 + 31 + i + dia + 30 + 31;
if (mes6%7 == 0){
System.out.println ("");
}
if (i<10){
System.out.print (" 0" +i);
}else if (i >= 10 && i <= 31){
System.out.print (" " +i);
}
}for (int i=1; i<=31; i++){
int mes7 = 29 + 31 + 31 + i + dia + 30 + 31 + 30;
if (mes7%7 == 0){
System.out.println ("");
}
if (i<10){
System.out.print (" 0" +i);
}else if (i >= 10 && i <= 31){
System.out.print (" " +i);
}
}for (int i=1; i<=31; i++){
int mes8 = 29 + 31 + 31 + i + dia + 30 + 31 + 30 + 31;
if (mes8%7 == 0){
System.out.println ("");
}
if (i<10){
System.out.print (" 0" +i);
}else if (i >= 10 && i <= 31){
System.out.print (" " +i);
}
}for (int i=1; i<=30; i++){
int mes9 = 29 + 31 + 31 + i + dia + 30 + 31 + 30 + 31 + 31;
if (mes9%7 == 0){
System.out.println ("");
}
if (i<10){
System.out.print (" 0" +i);
}else if (i >= 10 && i <= 31){
System.out.print (" " +i);
}
}for (int i=1; i<=31; i++){
int mes10 = 29 + 31 + 31 + i + dia + 30 + 31 + 30 + 31 + 31 + 30;
if (mes10%7 == 0){
System.out.println ("");
}
if (i<10){
System.out.print (" 0" +i);
}else if (i >= 10 && i <= 31){
System.out.print (" " +i);
}
}for (int i=1; i<=30; i++){
int mes11 = 29 + 31 + 31 + i + dia + 30 + 31 + 30 + 31 + 31 + 30 + 31;
if (mes11%7 == 0){
System.out.println ("");
}
if (i<10){
System.out.print (" 0" +i);
}else if (i >= 10 && i <= 31){
System.out.print (" " +i);
}
}for (int i=1; i<=31; i++){
int mes12 = 29 + 31 + 31 + i + dia + 30 + 31 + 30 + 31 + 31 + 30 + 31 + 30;
if (mes12%7 == 0){
System.out.println ("");
}
if (i<10){
System.out.print (" 0" +i);
}else if (i >= 10 && i <= 31){
System.out.print (" " +i);
}
}
}else if (anno % 4 == 0 && anno % 100 != 0){
for (int i=1; i<=31; i++){
int mes = i + dia;
if (mes%7 == 0){
System.out.println ("");
}
if (i<10){
System.out.print (" 0" +i);
}else if (i >= 10 && i <= 31){
System.out.print (" " +i);
}
}
for (int i=1; i<=29; i++){
int mes2 = 31 + i + dia;
if (mes2%7 == 0){
System.out.println ("");
}
if (i<10){
System.out.print (" 0" +i);
}else if (i >= 10 && i <= 31){
System.out.print (" " +i);
}
}for (int i=1; i<=31; i++){
int mes3 = 29 + 31 + i + dia;
if (mes3%7 == 0){
System.out.println ("");
}
if (i<10){
System.out.print (" 0" +i);
}else if (i >= 10 && i <= 31){
System.out.print (" " +i);
}
}for (int i=1; i<=30; i++){
int mes4 = 29 + 31 + 31 + i + dia;
if (mes4%7 == 0){
System.out.println ("");
}
if (i<10){
System.out.print (" 0" +i);
}else if (i >= 10 && i <= 31){
System.out.print (" " +i);
}
}for (int i=1; i<=31; i++){
int mes5 = 29 + 31 + 31 + i + dia + 30;
if (mes5%7 == 0){
System.out.println ("");
}
if (i<10){
System.out.print (" 0" +i);
}else if (i >= 10 && i <= 31){
System.out.print (" " +i);
}
}for (int i=1; i<=30; i++){
int mes6 = 29 + 31 + 31 + i + dia + 30 + 31;
if (mes6%7 == 0){
System.out.println ("");
}
if (i<10){
System.out.print (" 0" +i);
}else if (i >= 10 && i <= 31){
System.out.print (" " +i);
}
}for (int i=1; i<=31; i++){
int mes7 = 29 + 31 + 31 + i + dia + 30 + 31 + 30;
if (mes7%7 == 0){
System.out.println ("");
}
if (i<10){
System.out.print (" 0" +i);
}else if (i >= 10 && i <= 31){
System.out.print (" " +i);
}
}for (int i=1; i<=31; i++){
int mes8 = 29 + 31 + 31 + i + dia + 30 + 31 + 30 + 31;
if (mes8%7 == 0){
System.out.println ("");
}
if (i<10){
System.out.print (" 0" +i);
}else if (i >= 10 && i <= 31){
System.out.print (" " +i);
}
}for (int i=1; i<=30; i++){
int mes9 = 29 + 31 + 31 + i + dia + 30 + 31 + 30 + 31 + 31;
if (mes9%7 == 0){
System.out.println ("");
}
if (i<10){
System.out.print (" 0" +i);
}else if (i >= 10 && i <= 31){
System.out.print (" " +i);
}
}for (int i=1; i<=31; i++){
int mes10 = 29 + 31 + 31 + i + dia + 30 + 31 + 30 + 31 + 31 + 30;
if (mes10%7 == 0){
System.out.println ("");
}
if (i<10){
System.out.print (" 0" +i);
}else if (i >= 10 && i <= 31){
System.out.print (" " +i);
}
}for (int i=1; i<=30; i++){
int mes11 = 29 + 31 + 31 + i + dia + 30 + 31 + 30 + 31 + 31 + 30 + 31;
if (mes11%7 == 0){
System.out.println ("");
}
if (i<10){
System.out.print (" 0" +i);
}else if (i >= 10 && i <= 31){
System.out.print (" " +i);
}
}for (int i=1; i<=31; i++){
int mes12 = 29 + 31 + 31 + i + dia + 30 + 31 + 30 + 31 + 31 + 30 + 31 + 30;
if (mes12%7 == 0){
System.out.println ("");
}
if (i<10){
System.out.print (" 0" +i);
}else if (i >= 10 && i <= 31){
System.out.print (" " +i);
}
}
}else if (anno % 4 == 0 && anno % 400 != 0){
for (int i=1; i<=31; i++){
int mes = i + dia;
if (mes%7 == 0){
System.out.println ("");
}
if (i<10){
System.out.print (" 0" +i);
}else if (i >= 10 && i <= 31){
System.out.print (" " +i);
}
}
for (int i=1; i<=28; i++){
int mes2 = 31 + i + dia;
if (mes2%7 == 0){
System.out.println ("");
}
if (i<10){
System.out.print (" 0" +i);
}else if (i >= 10 && i <= 31){
System.out.print (" " +i);
}
}for (int i=1; i<=31; i++){
int mes3 = 28 + 31 + i + dia;
if (mes3%7 == 0){
System.out.println ("");
}
if (i<10){
System.out.print (" 0" +i);
}else if (i >= 10 && i <= 31){
System.out.print (" " +i);
}
}for (int i=1; i<=30; i++){
int mes4 = 28 + 31 + 31 + i + dia;
if (mes4%7 == 0){
System.out.println ("");
}
if (i<10){
System.out.print (" 0" +i);
}else if (i >= 10 && i <= 31){
System.out.print (" " +i);
}
}for (int i=1; i<=31; i++){
int mes5 = 28 + 31 + 31 + i + dia + 30;
if (mes5%7 == 0){
System.out.println ("");
}
if (i<10){
System.out.print (" 0" +i);
}else if (i >= 10 && i <= 31){
System.out.print (" " +i);
}
}for (int i=1; i<=30; i++){
int mes6 = 28 + 31 + 31 + i + dia + 30 + 31;
if (mes6%7 == 0){
System.out.println ("");
}
if (i<10){
System.out.print (" 0" +i);
}else if (i >= 10 && i <= 31){
System.out.print (" " +i);
}
}for (int i=1; i<=31; i++){
int mes7 = 28 + 31 + 31 + i + dia + 30 + 31 + 30;
if (mes7%7 == 0){
System.out.println ("");
}
if (i<10){
System.out.print (" 0" +i);
}else if (i >= 10 && i <= 31){
System.out.print (" " +i);
}
}for (int i=1; i<=31; i++){
int mes8 = 28 + 31 + 31 + i + dia + 30 + 31 + 30 + 31;
if (mes8%7 == 0){
System.out.println ("");
}
if (i<10){
System.out.print (" 0" +i);
}else if (i >= 10 && i <= 31){
System.out.print (" " +i);
}
}for (int i=1; i<=30; i++){
int mes9 = 28 + 31 + 31 + i + dia + 30 + 31 + 30 + 31 + 31;
if (mes9%7 == 0){
System.out.println ("");
}
if (i<10){
System.out.print (" 0" +i);
}else if (i >= 10 && i <= 31){
System.out.print (" " +i);
}
}for (int i=1; i<=31; i++){
int mes10 = 28 + 31 + 31 + i + dia + 30 + 31 + 30 + 31 + 31 + 30;
if (mes10%7 == 0){
System.out.println ("");
}
if (i<10){
System.out.print (" 0" +i);
}else if (i >= 10 && i <= 31){
System.out.print (" " +i);
}
}for (int i=1; i<=30; i++){
int mes11 = 28 + 31 + 31 + i + dia + 30 + 31 + 30 + 31 + 31 + 30 + 31;
if (mes11%7 == 0){
System.out.println ("");
}
if (i<10){
System.out.print (" 0" +i);
}else if (i >= 10 && i <= 31){
System.out.print (" " +i);
}
}for (int i=1; i<=31; i++){
int mes12 = 28 + 31 + 31 + i + dia + 30 + 31 + 30 + 31 + 31 + 30 + 31 + 30;
if (mes12%7 == 0){
System.out.println ("");
}
if (i<10){
System.out.print (" 0" +i);
}else if (i >= 10 && i <= 31){
System.out.print (" " +i);
}
}
}else{
for (int i=1; i<=31; i++){
int mes = i + dia;
if (mes%7 == 0){
System.out.println ("");
}
if (i<10){
System.out.print (" 0" +i);
}else if (i >= 10 && i <= 31){
System.out.print (" " +i);
}
}
for (int i=1; i<=28; i++){
int mes2 = 31 + i + dia;
if (mes2%7 == 0){
System.out.println ("");
}
if (i<10){
System.out.print (" 0" +i);
}else if (i >= 10 && i <= 31){
System.out.print (" " +i);
}
}for (int i=1; i<=31; i++){
int mes3 = 28 + 31 + i + dia;
if (mes3%7 == 0){
System.out.println ("");
}
if (i<10){
System.out.print (" 0" +i);
}else if (i >= 10 && i <= 31){
System.out.print (" " +i);
}
}for (int i=1; i<=30; i++){
int mes4 = 28 + 31 + 31 + i + dia;
if (mes4%7 == 0){
System.out.println ("");
}
if (i<10){
System.out.print (" 0" +i);
}else if (i >= 10 && i <= 31){
System.out.print (" " +i);
}
}for (int i=1; i<=31; i++){
int mes5 = 28 + 31 + 31 + i + dia + 30;
if (mes5%7 == 0){
System.out.println ("");
}
if (i<10){
System.out.print (" 0" +i);
}else if (i >= 10 && i <= 31){
System.out.print (" " +i);
}
}for (int i=1; i<=30; i++){
int mes6 = 28 + 31 + 31 + i + dia + 30 + 31;
if (mes6%7 == 0){
System.out.println ("");
}
if (i<10){
System.out.print (" 0" +i);
}else if (i >= 10 && i <= 31){
System.out.print (" " +i);
}
}for (int i=1; i<=31; i++){
int mes7 = 28 + 31 + 31 + i + dia + 30 + 31 + 30;
if (mes7%7 == 0){
System.out.println ("");
}
if (i<10){
System.out.print (" 0" +i);
}else if (i >= 10 && i <= 31){
System.out.print (" " +i);
}
}for (int i=1; i<=31; i++){
int mes8 = 28 + 31 + 31 + i + dia + 30 + 31 + 30 + 31;
if (mes8%7 == 0){
System.out.println ("");
}
if (i<10){
System.out.print (" 0" +i);
}else if (i >= 10 && i <= 31){
System.out.print (" " +i);
}
}for (int i=1; i<=30; i++){
int mes9 = 28 + 31 + 31 + i + dia + 30 + 31 + 30 + 31 + 31;
if (mes9%7 == 0){
System.out.println ("");
}
if (i<10){
System.out.print (" 0" +i);
}else if (i >= 10 && i <= 31){
System.out.print (" " +i);
}
}for (int i=1; i<=31; i++){
int mes10 = 28 + 31 + 31 + i + dia + 30 + 31 + 30 + 31 + 31 + 30;
if (mes10%7 == 0){
System.out.println ("");
}
if (i<10){
System.out.print (" 0" +i);
}else if (i >= 10 && i <= 31){
System.out.print (" " +i);
}
}for (int i=1; i<=30; i++){
int mes11 = 28 + 31 + 31 + i + dia + 30 + 31 + 30 + 31 + 31 + 30 + 31;
if (mes11%7 == 0){
System.out.println ("");
}
if (i<10){
System.out.print (" 0" +i);
}else if (i >= 10 && i <= 31){
System.out.print (" " +i);
}
}for (int i=1; i<=31; i++){
int mes12 = 28 + 31 + 31 + i + dia + 30 + 31 + 30 + 31 + 31 + 30 + 31 + 30;
if (mes12%7 == 0){
System.out.println ("");
}
if (i<10){
System.out.print (" 0" +i);
}else if (i >= 10 && i <= 31){
System.out.print (" " +i);
}
}
}
}
}
