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# Java Program to Input a Date and print it in dd/mm/yyyy format

#### Question:

Write a Program in Java to input a Date in ddmmyyyy 8-digit format and print it in:
1) dd/mm/yyyy format
2) dd, month name, yyyy format

Input: 01011943
Output:
01/10/1943
1 January, 1943

#### Solution:

```/**
* The class Date_DDMMYY inputs a Date in ddmmyyyy 8-digit format and prints it in dd/mm/yyyy format
* @author : www.javaforschool.com
* @Program Type : BlueJ Program - Java
*/

import java.io.*;
class Date_DDMMYY
{
public static void main(String args[])throws IOException
{
int l, y, d, m;
String dd, mm, yy;

//array storing the maximum days of every month
int maxdays[]={0,31,28,31,30,31,30,31,31,30,31,30,31};

//array storing the month names
String month[]={ "", "January", "February", "March", "April", "May", "June", "July", "August",
"September", "October", "November", "December" };

System.out.print("Enter any date in 8 digits (ddmmyyyy) format: ");
String date = br.readLine(); //inputting the date in String format

l = date.length(); //finding number of digits in the given input

if(l==8) //performing the task only when number of digits is 8
{
dd = date.substring(0,2); //extracting the day in String format
mm = date.substring(2,4); //extracting the month in String format
yy = date.substring(4); //extracting the year in String format
d = Integer.parseInt(dd); //day in Integer format
m = Integer.parseInt(mm); //month in Integer format
y = Integer.parseInt(yy); //year in Integer format

if((y%400==0) || ((y%100!=0)&&(y%4==0))) // condition for leap year
{
maxdays[2]=29;
}

/* checking whether the day, month and year are within acceptable range
i.e. there cannot be an input like 35012013 because 35/01/2013 is unacceptable*/

if(m<0 || m>12 || d<0 || d>maxdays[m] || y<0 || y>9999) // Performing Date Validation
{
System.out.println("The day, month or year are outside acceptable limit");
}

else
{
/* First Part */
System.out.println("Date in dd/mm/yyyy format = "+dd+"/"+mm+"/"+yy);

/* Second Part */
System.out.print("Date in dd, month name, yyyy format = "+dd+" "+month[m]+", "+yy);
}
}

else
System.out.println("Wrong Input");
}
}```

#### Output:

1) Enter any date in 8 digits (ddmmyyyy) format: 02052013
Date in dd/mm/yyyy format = 02/05/2013
Date in dd, month name, yyyy format = 02 May, 2013

2) Enter any date in 8 digits (ddmmyyyy) format: 12111963
Date in dd/mm/yyyy format = 12/11/1963
Date in dd, month name, yyyy format = 12 November, 1963

3) Enter any date in 8 digits (ddmmyyyy) format: 252013
Wrong Input

4) Enter any date in 8 digits (ddmmyyyy) format: 29022013
The day, month or year are outside acceptable limit

## Infix Postfix Prefix Conversion – Correct Method (ISC Computer Science)

In this video we discuss about the correct way of converting an Infix Expression to Postfix and Prefix.

1. Awaome logics of programs … This is wat I need… ðŸ™‚

2. Can i do this program by initializing the number input in a string and then using substring to break the numbers into date,month and year formats?

• That is what is done in the above program. After breaking them into day, month and year, you need to check whether they are valid or not.

3. Hats off!! Excellent explanation..such a huge program done easily…

4. Hats offf!!!

very very very nice site.Really some hardwork has been done in this.