Skip to main content


What will be the output? 

1.
class DemoString 
{
   public static void main(String...rk)      
      {
          StringBuilder b = new StringBuilder("abcdef");
          b.delete(4,6);
          b.ensureCapacity(22);
          System.out.print(b.capacity()); 
          b.ensureCapacity(23);
          System.out.print(b.capacity());
    }
}

2.
     import java.time.*;
import java.time.format.*;
class DemoDateTime
{
   public static void main(String...rk)
    {
         DateTimeFormatter dtf = DateTimeFormatter.ofPattern("yy/mm/dd");
LocalDateTime ldt = LocalDateTime.of(2015, 10, 10 , 11, 22);
    System.out.println(dtf.format(ldt));       

    }
} 

Comments

  1. rmouniak19 March 2018 at 03:31

    Thanks for sharing
    Core Java Online Training

    ReplyDelete
  2. URGENT LOAN14 August 2018 at 20:57

    Hello Everybody,
    My name is Mrs Sharon Sim. I live in Singapore and i am a happy woman today? and i told my self that any lender that rescue my family from our poor situation, i will refer any person that is looking for loan to him, he gave me happiness to me and my family, i was in need of a loan of S$250,000.00 to start my life all over as i am a single mother with 3 kids I met this honest and GOD fearing man loan lender that help me with a loan of S$250,000.00 SG. Dollar, he is a GOD fearing man, if you are in need of loan and you will pay back the loan please contact him tell him that is Mrs Sharon, that refer you to him. contact Dr Purva Pius,via email:(urgentloan22@gmail.com) Thank you.

    ReplyDelete
  3. Unknown1 September 2018 at 02:49

    Wow.. well good Blog Sir. You know about all concepts of Java. It is so good to learn something from your Blogs Sir.
    For more Information Visit Our Website Web Designing Course in Rohini

    ReplyDelete
  4. gopipatel26 July 2019 at 21:41

    most wonderfull Article, Thanks for sharing!
    Best Apps for Coding Java

    ReplyDelete
  5. ACL20 August 2019 at 05:31

    Useful article. Thanks for writing such an informative article.
    Regards
    Java Training Institute in Kolkata

    ReplyDelete
  6. Institute in Gurgaon8 November 2019 at 03:34

    APTRON Gurgaon located in different places in Gurgaon. We are the best Training Institute offers certification oriented Core Java Training in Gurgaon. Our members will be eligible to clear all type of interviews at end of our sessions. We are building a team of Core Java trainers and members for their future help and assistance in subject.
    For More Info: Core Java Course in Gurgaon

    ReplyDelete
  7. Unknown1 December 2019 at 20:37

    Good Post! Thank you so much for sharing the post, it was so good to read and useful to improve
    Java Training in Electronic City

    ReplyDelete
  8. Vinod Sharma1 August 2020 at 05:11

    This post and the whole blog is helpful for Java developers. Thanks for creating this website.
    Spring interview Questions

    ReplyDelete
  9. best18 November 2020 at 14:07

    tanc

    ReplyDelete
  10. Dhruvi Parmar16 May 2021 at 04:50

    Nice Blog!!! keep Posting!!!

    To get taxi from Siliguri to Darjeeling you can check our site www.99carrentals.com

    ReplyDelete

Post a Comment

Popular posts from this blog

Practice MCQs

  1. What will be the Output of the following code? class X{                  static int x = 1;                        static class Y {                              static int y = x++;                                static class Z                                                                       {                                                                                         static int z = ++y;                                                                        }                                               }                }   class MainClass{     public static void main(String[] rk)    {                             System.out.print(X.x);                                             System.out.print(X.Y.y);                             System.out.print(X.Y.Z.z);         } } A. 113 B. 123 C. 111 D. None of These Ans: A 2.  Which of the following statement is TRUE about t he following code? public class Outer  {    private i
5 comments
Read more

Practice Set

1. Write a program to create a class Voter which contains attributes name, date_of_birth and voter_id and voter has a Voter_Card. Provide appropriate constructor to initialize all the attributes of the Voter but voter id must be assigned automatically only when the age of the voter is greater than or equal to 18 years. VoterCard is a nested class with attributes voter_id and Voter_name. Make sure that voter card is created only when user is a valid voter and if it is already created then must not be assigned the new voter id. 2. Write a program to define two interfaces UGC and AICTE both having a default method int getAdmission() to take the admission and an abstract method String payFee(). getAdmission() in UGC must ask the percentage in qualifying exam and if the percentage >= 60 then generate the registration number and return. getAdmission() is AICTE must ask the user to join the counseling after 5 days and display the date of counseling and return the counseling token numb
62 comments
Read more

Mock Test - 1

1. Which of the following is a byte stream class? A. ObjectInputStream B. Writer C. PrintWriter D. Scanner Ans: A 2. Which exception is thrown by read() method in InputStream class? A. IOException B. InterruptedException C. FileNotFoundException D. None of These Ans: A 3. Which of the following class is subclass of FilterInputStream? A. InputStream B. ObjectOutputStream C. FileInputStream D. BufferedInputStream  Ans: D 4. Which of these class contains the print() and println() methods? A. System B. out C. PrintStream D. BUfferedOutputStream Ans: C 5. Which of these is a method to clear all the data present in output buffer without terminating the stream? A. clear() B. fflush() C. flush() D. close() Ans: C 6. Which of these classes defined in java.io and used for file-handling are abstract? (i) InputStream        (ii) PrintStream    (iii) Reader        (iv) FileInputStream A. Only i     B. i and ii    C. Only iii    D. i and iii Ans: D 7. What is the output of this program? class MyE
16 comments
Read more