HELP JAVA ASSIGNMENT So here is my programming assignment Wr
HELP JAVA ASSIGNMENT!!
 
 So here is my programming assignment: \"Write a program in Java to generate the entire calendar for one year. The program must get two values from the user: : (1) the year and (2) the day of the week for January 1st of that year. \"
 I have everything in my code working except the numbers on the calendar don\'t line up like they should. Here\'s a picture of how it is SUPPOSED TO LOOK LIKE THE LEFT SIDE. Mine looks like the one to the RIGHT. I somehow have extra spaces. Can you PLEASE help with this problem? THANKS in advance!!
This is my code ( The day of the week for January 1st is needed so that you know where to start the calendar. The user should enter 0 for Sunday, 1 for Monday, … or 6 for Saturday. To actually print the calendar, a SINGLE method that prints out the calendar for one month must be used and then called 12 times from main(), once for each month in the year. To check for a leap year we will need to write another method that takes the year as a parameter and returns true if it’s a leap year, or false otherwise.)
:
public class CalendarAssignment {
    /**
    * Error to output if year is not positive
    */
    static final String E_YEAR = \"The year must be positive!\";
   /**
    * Error to output if the day is not between 0 and 6
    */
    static final String E_DAY = \"The day of January 1st must be between 0 and 6!\";
   /**
    * Determines if an input is a leap year
    *
    * @param year
    * year in question
    * @ereturn true if a leap year
    */
    public static boolean isLeapYear(int year) {
    boolean leapyear = false;
    if(year%4 == 0) {
    if(year%100 == 0){
    if(year%400 == 0){
    return !leapyear;
    };
    }else{
    return !leapyear;
    }
    }
    return leapyear; // TODO: replace with your code
    }
   /**
    * Outputs a month to the console
    *
    * @param month
    * title
    * @param startDay
    * 0=Sunday ... 6=Saturday
    * @param numDays
    * number of days in the month
    * @return day of the week of the last day of the month
    */
    public static int printMonth(String month, int startDay, int numDays) {
    System.out.println(month);
    int nextLine=1;
    for(int j=numDays,k=1;j>0;){
    if(startDay>0){
    for(int i=0;i    System.out.printf(\"\\t\");
    nextLine++;
    }
    startDay=0;
    }else{
    System.out.printf(k + \"\\t\");
    nextLine++;
    k++;
    j--;
    }
    if((nextLine >7)){System.out.println(); nextLine=1;}
    }
    return (nextLine-1);
    // TODO: replace with your code
    }
   /**
    * Program execution point: input year, day of the week (0-6) of january 1
    * output calendar for that year
    *
    * @param args
    * command-line arguments (ignored)
    */
    public static void main(String[] args) {
   String[] months = {\"January\", \"February\", \"March\", \"April\", \"May\",
    \"June\", \"July\", \"August\", \"September\", \"October\", \"November\",
    \"December\" };
    int[] total_Days_In_Months = {31,28,31,30,31,30,31,31,30,31,30,31};
    Scanner input = new Scanner(System.in);
    System.out.print(\"Enter the year: \");
    int year = input.nextInt();
    System.out.print(\"Enter the day of the week of January 1st (0=Sunday, 1=Monday, ... 6=Saturday): \");
    if(year <= 0) {
        System.out.print(E_YEAR);
        System.out.println();
        System.exit(0);
    }
    int day_of_week = input.nextInt();
    if(day_of_week <0 || day_of_week >6)
        {
        System.out.print(E_DAY);
        System.out.println();
        System.exit(0);
        }
    if(isLeapYear(year)){
    total_Days_In_Months[1] = 29;
    }
    for(int j=0;j    int endDay = day_of_week;
    day_of_week = printMonth(months[j], endDay, total_Days_In_Months[j]);
    System.out.println();
    }
    }
 }
Solution
package org.students;
import java.util.Scanner;
public class DisplayCalendar {
   public static void main(String[] args) {
        int getFirstDay;
Scanner scanner = new Scanner(System.in);
System.out.print(\"Enter the year: \");
       int year = scanner.nextInt();
       
        while(true)
        {  
System.out.print(\"Enter 1st day of year ( 0 = Sunday, 6 = Satuday ): \");
       getFirstDay = scanner.nextInt();
        if(getFirstDay<0 || getFirstDay>6)
        {
            System.out.println(\":: Invalid Day.Enter Valid number between 0 and 6 ::\");
            continue;
        }
        else
            break;
        }
for (int month = 1; month <= 12; month++) {
int days = 0;
String monthName = \" \";
switch (month) {
           case 1:
                monthName = \"January\";
days = 31;
break;
           case 2:
                monthName = \"February\";
if (((year % 4 == 0) && (year % 100 != 0)) || (year % 400 == 0)) {
days = 29;
} else {
days = 28;
}
break;
           case 3:
                monthName = \"March\";
days = 31;
break;
           case 4:
                monthName = \"April\";
days = 30;
break;
           case 5:
                monthName = \"May\";
days = 31;
break;
           case 6:
                monthName = \"June\";
days = 30;
break;
           case 7:
                monthName = \"July\";
days = 31;
break;
           case 8:
                monthName = \"August\";
days = 31;
break;
           case 9:
                monthName = \"September\";
days = 30;
break;
           case 10:
                monthName = \"October\";
days = 31;
break;
           case 11:
                monthName = \"November\";
days = 30;
break;
           case 12:
                monthName = \"December\";
days = 31;
break;
           default:
                System.out.print(\"Invalid Month.\");
                System.exit(0);
break;
}
System.out.println(\" \" + monthName + \" \" + year);
System.out.println(\"__________________________________\");
System.out.println(\" Sun Mon Tue Wed Thu Fri Sat\");
int i = 0;
int firstDay = 0;
switch (month) {
           case 1:
                firstDay = getFirstDay;
break;
           case 2:
                firstDay = getFirstDay + 3;
break;
           case 3:
                firstDay = getFirstDay + 3;
break;
           case 4:
                firstDay = getFirstDay + 6;
break;
           case 5:
                firstDay = getFirstDay + 8;
break;
           case 6:
                firstDay = getFirstDay + 11;
break;
           case 7:
                firstDay = getFirstDay + 13;
break;
           case 8:
                firstDay = getFirstDay + 16;
break;
           case 9:
                firstDay = getFirstDay + 19;
break;
           case 10:
                firstDay = getFirstDay + 21;
break;
           case 11:
                firstDay = getFirstDay + 24;
break;
           case 12:
                firstDay = getFirstDay + 26;
break;
}
if (((year % 4 == 0) && (year % 100 != 0)) || (year % 400 == 0)) {
switch (month) {
               case 1:
                    firstDay = getFirstDay;
break;
               case 2:
                    firstDay = getFirstDay + 3;
break;
               case 3:
                    firstDay = getFirstDay + 4;
break;
               case 4:
                    firstDay = getFirstDay + 7;
break;
               case 5:
                    firstDay = getFirstDay + 9;
break;
               case 6:
                    firstDay = getFirstDay + 12;
break;
               case 7:
                    firstDay = getFirstDay + 14;
break;
               case 8:
                    firstDay = getFirstDay + 17;
break;
               case 9:
                    firstDay = getFirstDay + 20;
break;
               case 10:
                    firstDay = getFirstDay + 22;
break;
               case 11:
                    firstDay = getFirstDay + 25;
break;
               case 12:
                    firstDay = getFirstDay + 27;
break;
}
}
int dayOfWeek = 0;
if ((firstDay % 7) >= 0) {
if ((firstDay % 7) == 0) {
dayOfWeek = 0;
} else if ((firstDay % 7) == 1) {
dayOfWeek = 1;
System.out.print(\" \");
} else if ((firstDay % 7) == 2) {
dayOfWeek = 2;
System.out.print(\"\\t \");
} else if ((firstDay % 7) == 3) {
dayOfWeek = 3;
System.out.print(\"\\t\\t \");
} else if ((firstDay % 7) == 4) {
dayOfWeek = 4;
System.out.print(\"\\t\\t\\t\");
} else if ((firstDay % 7) == 5) {
dayOfWeek = 5;
System.out.print(\"\\t\\t\\t \");
} else if ((firstDay % 7) == 6) {
dayOfWeek = 6;
System.out.print(\"\\t\\t\\t\\t \");
               }
            }
for (i = 1; i <= days; i++) {
if (i < 10)
System.out.print(\" \" + i);
else
System.out.print(\" \" + i);
if ((i + firstDay) % 7 == 0)
System.out.println();
}
System.out.println();
}
}
}
______________________________
Output:
Enter the year: 2016
 Enter 1st day of year ( 0 = Sunday, 6 = Satuday ): 7
 :: Invalid Day.Enter Valid number between 0 and 6 ::
 Enter 1st day of year ( 0 = Sunday, 6 = Satuday ): 9
 :: Invalid Day.Enter Valid number between 0 and 6 ::
 Enter 1st day of year ( 0 = Sunday, 6 = Satuday ): 5
 January 2016
 -----------------------------------
 Sun Mon Tue Wed Thu Fri Sat
            1 2
 3 4 5 6 7 8 9
 10 11 12 13 14 15 16
 17 18 19 20 21 22 23
 24 25 26 27 28 29 30
 31
 February 2016
 -----------------------------------
 Sun Mon Tue Wed Thu Fri Sat
 1 2 3 4 5 6
 7 8 9 10 11 12 13
 14 15 16 17 18 19 20
 21 22 23 24 25 26 27
 28 29
 March 2016
 -----------------------------------
 Sun Mon Tue Wed Thu Fri Sat
    1 2 3 4 5
 6 7 8 9 10 11 12
 13 14 15 16 17 18 19
 20 21 22 23 24 25 26
 27 28 29 30 31
 April 2016
 -----------------------------------
 Sun Mon Tue Wed Thu Fri Sat
            1 2
 3 4 5 6 7 8 9
 10 11 12 13 14 15 16
 17 18 19 20 21 22 23
 24 25 26 27 28 29 30
May 2016
 -----------------------------------
 Sun Mon Tue Wed Thu Fri Sat
 1 2 3 4 5 6 7
 8 9 10 11 12 13 14
 15 16 17 18 19 20 21
 22 23 24 25 26 27 28
 29 30 31
 June 2016
 -----------------------------------
 Sun Mon Tue Wed Thu Fri Sat
        1 2 3 4
 5 6 7 8 9 10 11
 12 13 14 15 16 17 18
 19 20 21 22 23 24 25
 26 27 28 29 30
 July 2016
 -----------------------------------
 Sun Mon Tue Wed Thu Fri Sat
            1 2
 3 4 5 6 7 8 9
 10 11 12 13 14 15 16
 17 18 19 20 21 22 23
 24 25 26 27 28 29 30
 31
 August 2016
 -----------------------------------
 Sun Mon Tue Wed Thu Fri Sat
 1 2 3 4 5 6
 7 8 9 10 11 12 13
 14 15 16 17 18 19 20
 21 22 23 24 25 26 27
 28 29 30 31
 September 2016
 -----------------------------------
 Sun Mon Tue Wed Thu Fri Sat
            1 2 3
 4 5 6 7 8 9 10
 11 12 13 14 15 16 17
 18 19 20 21 22 23 24
 25 26 27 28 29 30
 October 2016
 -----------------------------------
 Sun Mon Tue Wed Thu Fri Sat
                1
 2 3 4 5 6 7 8
 9 10 11 12 13 14 15
 16 17 18 19 20 21 22
 23 24 25 26 27 28 29
 30 31
 November 2016
 -----------------------------------
 Sun Mon Tue Wed Thu Fri Sat
    1 2 3 4 5
 6 7 8 9 10 11 12
 13 14 15 16 17 18 19
 20 21 22 23 24 25 26
 27 28 29 30
 December 2016
 -----------------------------------
 Sun Mon Tue Wed Thu Fri Sat
            1 2 3
 4 5 6 7 8 9 10
 11 12 13 14 15 16 17
 18 19 20 21 22 23 24
 25 26 27 28 29 30 31










