BlueJ Program On Day Number And Date

For Details of The Program: CLICK HERE

import java.io.*;
class A
{
   int days[]={31,28,31,30,31,30,31,31,30,31,30,31};
   String mon[]={"JANUARY","FEBRUARY","MARCH","APRIL","MAY","JUNE","JULY","AUGUST","SEPTEMBER","OCTOBER","NOVEMBER","DECEMBER"};
   int d,n,yr,leap=0;
   BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
   public void takeDatas() throws Exception
   {
        System.out.print("\nDAY NUMBER:");
        d=Integer.parseInt(br.readLine());
        System.out.print("\nYEAR NUMBER:");
        yr=Integer.parseInt(br.readLine());
        System.out.print("\nDAY AFTER (N):");
        n=Integer.parseInt(br.readLine());
   if (d<=1 || d>=366)
   {
   System.out.print("\nDAY NUMBER OUT OF RANGE");
   System.exit (0);
   }
   if (n<=0 || n>=101)
   {
   System.out.print("\nDATE AFTER (N DAYS) OUT OF RANGE");
   System.exit (0);
   }
 } 
   public void isLeap()
   {
  if(yr%100==0 && yr%400==0)
        leap++;
        else if(yr%100!=0 && yr%4==0)
        leap++;
    }
    public void show()
    {
         int i;
         n=n+d;
         for(i=0;i<=11;i++)
         {
           d=d-days[i];
           if(d< days[i])
           break;
        }                
        System.out.print("\nDATE: "+ d);
        if(d==1)
        System.out.print(" ST ");
         else if(d==2)
         System.out.print(" ND ");
         else if(d==3)
         System.out.print(" RD ");
         else
         System.out.print(" TH ");         
         System.out.print(mon[i+1] + "," + yr);
/* mon[i+1] as loop terminates when complete number of days of the previous month is taken */ 
         // AFTER 'N' NUMBER OF DAYS
         i=0;
         for(;;)
         {
           n=n-days[i++];
           if(i==12)
           i=0;
           if(n< days[i])
           break;
        }                
        System.out.print("\nDATE: "+ n);
        if(d==1)
        System.out.print(" ST ");
         else if(d==2)
         System.out.print(" ND ");
         else if(d==3)
         System.out.print(" RD ");
         else
         System.out.print(" TH ");         
         System.out.print(mon[i] + "," + yr);
/* Here 'i' was incremented before exit from loop */
        }
        public static void main(String args[]) throws Exception
        {
             A ob=new A();
             ob.takeDatas();
             ob.isLeap();
             ob.show();
            }
        }

Back To 2019 Computer Practical Paper: CLICK HERE