Slip13

 Q1) Write a program to accept a file name from command prompt, if the file exits then display number of words and lines in that file. [10 marks] 

import java.io.*;

class Slip13_1

{

public static void main(String args[]) throws IOException

{

String line,dirname=args[0];

int ch,i,cnt=0,lcnt=0;

File f1=new File(dirname);

if(f1.isFile() && f1.exists())

{

BufferedReader br = new BufferedReader(new FileReader(f1));  

          while((line = br.readLine()) != null) 

{  

lcnt++;

            String words[] = line.split("");  

                cnt = cnt + words.length;  

}

}

System.out.println("Total Number Of Lines:"+lcnt);

System.out.println("Total Number Of Words:"+cnt);

}

}

Q2) Write a program to display the system date and time in various formats shown below: Current date is : 31/08/2021 Current date is : 08-31-2021 Current date is : Tuesday August 31 2021 Current date and time is : Fri August 31 15:25:59 IST 2021 Current date and time is : 31/08/21 15:25:59 PM +0530 [20 marks]

/*

Letter Date or Time Component Presentation Examples

G Era designator Text AD

y Year Year 1996; 96

Y Week year Year 2009; 09

M Month in year Month July; Jul; 07

w Week in year Number 27

W Week in month Number 2

D Day in year Number 189

d Day in month Number 10

F Day of week in month Number 2

E Day name in week Text Tuesday; Tue

u Day number of week (1 = Monday, ..., 7 = Sunday) Number 1

a Am/pm marker Text PM

H Hour in day (0-23) Number 0

k Hour in day (1-24) Number 24

K Hour in am/pm (0-11) Number 0

h Hour in am/pm (1-12) Number 12

m Minute in hour Number 30

s Second in minute Number 55

S Millisecond Number 978

z Time zone General time zone Pacific Standard Time; PST; GMT-08:00

Z Time zone RFC 822 time zone -0800

X Time zone ISO 8601 time zone -08; -0800; -08:00



Date and Time Pattern Result

"yyyy.MM.dd G 'at' HH:mm:ss z" 2001.07.04 AD at 12:08:56 PDT

"EEE, MMM d, ''yy" Wed, Jul 4, '01

"h:mm a" 12:08 PM

"hh 'o''clock' a, zzzz" 12 o'clock PM, Pacific Daylight Time

"K:mm a, z" 0:08 PM, PDT

"yyyyy.MMMMM.dd GGG hh:mm aaa" 02001.July.04 AD 12:08 PM

"EEE, d MMM yyyy HH:mm:ss Z" Wed, 4 Jul 2001 12:08:56 -0700

"yyMMddHHmmssZ" 010704120856-0700

"yyyy-MM-dd'T'HH:mm:ss.SSSZ" 2001-07-04T12:08:56.235-0700

"yyyy-MM-dd'T'HH:mm:ss.SSSXXX" 2001-07-04T12:08:56.235-07:00

"YYYY-'W'ww-u" 2001-W27-3


*/

import java.text.SimpleDateFormat;

import java.util.Date;

public class DateFormatExample 

{


    public static void main(String args[]) 

{

     

        // This is how to get today's date in Java

        Date today = new Date();

            

      SimpleDateFormat df = new SimpleDateFormat("dd/MM/yyyy");

       String date = df.format(today);

       System.out.println ("\nCurrent Date is : " + date);

     

  //Another Example of formatting Date in Java using SimpleDateFormat

        df = new SimpleDateFormat("MM-dd-yyyy");

        date = df.format(today);

        System.out.println("\nCurrent Date is : " + date);


             

     //formatting Date with time information

        df = new SimpleDateFormat("EEEEE d MMM yyyy");

        date = df.format(today);

        System.out.println("\nCurrent Date is : " + date);


 //If you print Date, you will get un formatted output

        System.out.println("\nCurrent Date and Time is: " + today);


        //formatting Date with time information

        df = new SimpleDateFormat("dd/MM/yy HH:mm:ss aaaZ");

        date = df.format(today);

        System.out.println("\nCurrent Date and Time is : " + date);

     

        //SimpleDateFormat example - Date with timezone information

        df = new SimpleDateFormat("HH:mm:SS");

        date = df.format(today);

        System.out.println("\nCurrent Time is : " + date);


     df = new SimpleDateFormat("w");

        date = df.format(today);

        System.out.println("\nCurrent week of year is : " + date);


df = new SimpleDateFormat("W");

        date = df.format(today);

        System.out.println("\nCurrent week of month : " + date);

 

df = new SimpleDateFormat("D");

        date = df.format(today);

        System.out.println("\nCurrent day of the year is : " + date);


df = new SimpleDateFormat("d");

        date = df.format(today);

        System.out.println("\nCurrent day of the month is : " + date);

    }

}



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