🔥 AJ Advanced Java (BIS402) Explained in One Shot 🚀 | VTU #sporifiilearn

Ajouté : 2026-06-03

[00:00:03]Hi hello everyone welcome back to my YouTube channel Spotify learn today I'm here with the video of advanced Java module wise video I'll make it as a oneshot video all the modules under one module if you want the same PDF dom me on Instagram my Instagram account will be mentioned in the description do second now let's discuss without further wasting time if you're watching my channel without subscribing make sure to subscribe and then watch the video let's start without further wasting time first Question what they have given is what is collection framework and explain the methods defined by the interfaces collection list sorted set and the queue. Okay. First what is Java collection framework? It is a unified architecture provided by Java to store and manipulate groups of objects. That means uh if you have some groups of objects that is many objects it will help to store that. Okay.

[00:00:59]Next is what are the interfaces that they provide that is the methods that they provide in their interfaces. See interfaces that have is collection list set and Q interfaces collection list priority Q algorithms search algorithms first you will add an element here that means you will element you will add okay Add add second element.

[00:01:35]Okay, that is called an add all. That is add all the elements of another collection. If you have one collection and another collection here, what are the elements are there that you will add here. Okay, that is called add all.

[00:01:46]Again the same remove all remove element. Remove all elements. Retain all. It should have that is common elements. 1 2 1 2 3 four only one retain that is it should remain clear. It should remove all elements.

[00:02:08]Delete contains it should contain those and check is empty is whether it is two is empty because it is having some of the elements. If it is empty it will give true. Okay. Next size of it will convert it into array. Next is list interface add again. Get set you will replace that element. Okay. And you will remove index of one element 2 index.

[00:02:50]You will use the method of index of last index of again iterator again sublist okay portion of list. Next is sorted set that is about the first element last element. Next is headset. Head is nothing but element.

[00:03:13]Next is from comparator it will compare using the sorting. Okay. Sorting method compare next to again the same Q that is you will insert insert again remove pole that is you will return the head element first element and it will return the head element again in element peak is the without removing it will return but without removing. Okay. First insert element. Okay. Again offer remove element first element element less greater element that is element also without removing it will return. Next is what is legacy classes? Explain the four legacy classes.

[00:04:05]The classes and interfaces that were introduced by this. Okay. These are the classes that were modified with the Java collection framework. They are available in java.util.package.

[00:04:16]Okay, they are available there. Vector stack hasht dictionary enumeration properties again the same here. Add element to remove element element elements 1 2 element. This position is what? Two return size of this collection. And next is what is the capacity? Next program vector string new vector that is constructor element Java Python C++ okay because you know index starts from zero.

[00:05:05]Next stack will be adding. Okay.

[00:05:15]First stack 10 20 30. Okay. Now next top element. Top element.

[00:05:25]So that will be the peak element. Okay.

[00:05:27]I said greater. Okay. Next is peak element. Pop removed element. that is what is the latest again added that will be removed.

[00:05:36]You can see here 30 is removed. Okay.

[00:05:38]Next is hasht class. Again you will have hasht integer string ht new hash table that is one java 2 python c3++ and next you will print this and again when you have the get of two that is 1 and two okay in the position one it is java in the position two it is python you will get python and two is python one is java after removal dictionary class one python java Dav next after only Java will be remaining. Okay, I have explained only four. Okay, next is explain how collection can be accessed using an iterator with example and iterator is an interface that is used in Java to access elements of a collection one by one.

[00:06:34]First, second, third access you will use this array list, link list, hash, set and vector. Okay, again it comes the same type of methods and all. You can see here again see you will be adding iterator and if you have this method while while you'll be using itr because you here the variable name is itr has next you'll print.

[00:06:57]Okay next again advantages limitations everything is given next. What are the recent changes and see introduction of generics were not there that is it provides safety that is security okay elimination type casting type casting eliminate runtime error next for loop okay enhanced for each loop okay for each for string s list of s okay that will be having and concurrent collections list iterator stream API lambda expression immutable collection method and all were added performance improvements and all. Okay. Next, write a program to show how to store userdefined classes. When you have userdefined classes, it means you have to create the class. Okay. See, you will import java.tutual.star. Here it is userdefined. That is class student. You are creating this class inside that what integer is ID, string is name. And again you'll have student int ID, string name.

[00:07:56]this dot you will use this keyword and why display you will display this okay what you're using here next user defined class demo in main function array list array list you will declare in student list is equal to new array list of student and array list in s1 s2 s3 you will create in the object that is 1 10 1 you will give name and if you want that list dot add of s1 s2 s3 because in list you want to add this okay here you have created the list you want to add these objects. So you are adding this. Okay.

[00:08:30]Next is you will have the iterator because it have to print all one by one.

[00:08:35]Okay. It has next uh you will be having yes dot that is itr. Next and you will be having display and this is for next line. Okay. As you can see the output is printed. Next give the syntax for collection interface and explain the methods in collection interface. Okay.

[00:08:52]The collection interface is the root interference of Java collection framework. It is the root interference.

[00:08:58]Okay. List set Q and all it will be having. See first if you have the declaration collection string C that is the name is equal to new or list string that is what is the type you'll have and the constructor. Okay. And again it is the same method you can see these methods explain of important methods also I have given with a certain example. You can see that here also again you will be having C dot add and while printing you'll use while after you remove this only Java and C++ will be printed as you can see here Java and C++ will be printed. Okay, this will check whether true or false because it is saying contains Java. Yes, this is containing Java. If you had given here something as PHP, it was giving us false because this collection mainly doesn't have PHP words. So it is false. It gives either true or false. Next question is methods in list interference. Again the same methods type add, add add, remove, get, index of, last index of and all.

[00:10:01]And explanation of that is also being given. And the same type that is you'll create a student class. This is private string us. This is one of your lab program also. You can go through this and um you will create the student class and you will add that and you will use this. You will uh declare. Okay. Next also you can see here next is navigable set methods. Okay. Navigable set methods interference in Java that extends the sorted set. Okay. Sorted set extend navigable in Java package. Okay. Again the method of ceiling smallest greater higher smallest to lower that is greater elements than the given elements smaller elements pole next to pole tail everything has been explained you please go through these methods with example also have been given. So if you want the same PDF of all five modules do DM me on Instagram.

[00:11:00]My Instagram account will be mentioned in description as well and I have written here also. And next also you can see these. Next question is collection dots sort reverse and shuffle. That is sort means if you have one list or collection if you have 2 3 4 5 and here one it will sort it in the ascending order which you give. Reverse means 1 2 3 4 if it is there 5 4 3 2 1 it will print and shuffle is it will shuffle randomly as you can see here. Okay, see here 40 10 30 20 is there 10 20 30 40 what is the logic you are using here you created a array list of integer type list that is new integer 40 10 30 and you used when you used here before list you printed the this list okay now what you are doing collection dot sort of list okay after that you will print again the list means you will be printed with this next is again the reverse list you will create again a list that is Java Python C++ and HTML HTML, C++, Python and Java will be printed as the reverse order. Next is shuffle. Shuffle means as you can see here 1 2 3 4 5 is there. Shuffle is 3154. That is output may vary when it is in the random order as I said. Okay.

[00:12:17]Next is array dot sort and binary search. array dots sortters it will like sort in the ascending order and um as this is also same again you will have one array you'll print before that for loop for i is equal to0 i less than array dotlength array of i you will print array dot sort of array next is binary search this is like binary using binary search algorithm what you have studied in ada a bit you have to apply here okay see first what you will do you will create an array dot binary search of array of 30 that is you will search what index it is 0 1 2 so two will be printed as you can see here in the output next when example see uh 60 is not here only but the output is minus 6 okay when there is no output that is the element which you are searching you will get the result in negative terms that's all and um now let's move on to the next module List any two character extraction method that is carrot that is what the character is present at what index see Java that is s dot character of two that is 0 1 2 that is v is present so it is printed as v next is get cash okay it will copy the string into an character array okay see here you can see string yes s is programming character array is being declared as new character of five okay 05 and this See 0 1 2 3 4 this fifth element will not be included from here.

[00:13:55]Okay, that is printed here.

[00:13:58]0 to four that is 0, 6. If you give fifth will be included, sixth will not be included. That is the basic idea in get cash. Next is string constructor empty constructor that is um new string of and it will print. Next is literal that is when you give string literal that is strings in double inverted comma character that is character in 1 single inverted comma with range okay with range if you give again this is having character 0a 4 okay output will be 0 1 2 3 okay from fourth it will not be printed again as I said in the previous byte byte means what as you know the byte data type and it will create a string from byte array that is 67 7 this is B. Okay. And next you will be printing that is as sky value it is printing. Okay. Next is copy constructor that is C. Here you have hiding S6 as Java. S7 you are calling this only. So it will be printing as Java only. Next is additional string methods. Length substring whether it is uh it will extract a part of string. If you give for example substring of int begin index such as you will give zero int end index if you give as five and if you give u what string as or here I'll make it as four here I'll make it as python okay 1 2 3 4 okay see 0 1 2 3 it will be printed four five will not be printed substring will be printed and next is two upper case that is if you have s t r i n all in small it will be printing all in caps again the same way if you have this if you want this to lower case and next is trim if you have some extra spaces here you will trim that uh that is all the extra methods you can explain it with one one example like what I given okay next is special string operations is using plus operator that is concatenation it is not addition 3 + 2 It will give us 32 not five. Okay. It is not the operation. It is operator that combines two strings.

[00:16:11]Okay. Next is Java programming. It will be printed like this. Okay. Next is concat method. Again two strings again it will be joining. Next is string buffer that is this is also in one of your lab program that is I guess it is in sixth program. You can see string buffer SB you will print that is capacity SB. capacity again SB dot reverse again SB do.insert Insert you will do and you will print that. Next is append you will do and print that and uh next you can see any string modification methods that is again replace trim you can do substring which you have already discussed concatenation explain it with one Java program that is explain with one Java program which I have given is also sufficient and you have to see for what marks they have allotted and you should answer the question. Next is uh string comparison methods equals. If you have Java and Java, it will print true.

[00:17:09]If you have Java equals to Java, okay, a is not there. So, it will be giving us false.

[00:17:17]Next equals ignore case that is it will be ignoring upper and lower case difference. See it is Java and here it is Java. You can see this is capital letter but here it all is capital. It will be ignoring that.

[00:17:30]Okay, equal ignore case and it will be giving us output. But here if it is Java and here if it is Python, it will not be giving. Okay, next compare to when it has strings to strings to compare and uh this will give you minus1. Okay, that is S1 dot compare to of S2 that is one string you are comparing with another string.

[00:17:52]See when if it is giving positive first string is greater second string is greater. If it is giving negative okay next starts with and ends with what this starts with Java true and it's end with m i n true again next write a program to duplicate again you can see this uh string you are giving as programming string result and for i you are using k do i index and you are printing the result that is yes you are printing the first this and you're printing the result see first it is programming after removing duplicates that is yum is repeated And what are the repeated elements? If you remove you are getting this CG is repeated again. It is removed that and all it will give the output.

[00:18:38]Next, what is string? It is a sequence of characters and enclosed in double quotation and string S is equals to and you can see this constructors as I said string constructor normal literal character with range byte array and copy constructor. This everything is been discussed in the previous questions.

[00:18:56]Next is carrot and get carrots is also explained. See most of the here is methods just you have to try to exa example and you have to explain those example. Now if you write this program it's not sufficient you should give us uh created a class created a class called demo okay in the main function.

[00:19:15]Next string is programming and next you have created a car array that is of five index and uh now you are giving the method as get cache. Get catch method is used with this 0 to five array of zero and what you will be printing that is 0 to four fifth will not be included that and all you have to explain a bit in theory. Next is join that is if you have two strings it will join that is Java Python and C you have given here this will be adding in between those two.

[00:19:43]Next is write a short program again using a delimter to uh like if you have a list of string you have to join it into a single string that is apple mango orange banana uh string result you'll be having dot join of this if you have want like this it will be okay here now let's move on to the third module quickly yeah explain the force swing buttons that is with demonstration program that is J button, J toggle button, J checkbox and J radio button. I'll be explaining the program. Then the public class uh swing button you can give any name public in main class J frame. Frame is equals to new J frame that is you are creating a new J frame and you will set layout as flow layout button will be J button of new J button. Toggle button again new toggle button checkbox and radio button all are you are creating new but you will add it. Okay, that is B1, B2, B3 and B4 you are adding to frame and again you will set size as 400 and 300 and set default close operations. When it is not operating it will exit on close and you will set visible of true. This will display four swing events. Okay, next is MVC. This is one of the important model view controller. M means model, V means view, C means controller. Model means it will store data and application logic.

[00:21:11]maintains the state of data. View means it is responsible for displaying what it is stored here. It will display and here it will handle some interactions and uh events what has been happening.

[00:21:24]Next if you can see MVC architecture and swing next advantages and all. Next is what are the key swing features? It is platform independent, lightweight components, a rich set of components, pluggable look and feel, MVC architecture as you saw, model view controller, custom painting can be done, event handling, flexible layout and highly portable and all you can see explain this following. J label, I image icon and J text field. This is also one of the repeated question. It is used to display text or images. You can create by this syntax. It will display the text and it will display the images supports the alignment. Image icon is used to display the images and here it is uh to from input if you the user gives any of the input that is single line text it will be accepting that that is text field. As you can see here everything is almost same again it is set default that is exit on close and you will be set to visible is true. Every syntax of this module almost contains that is uh image icon, J text field, J label, J button, J toggle button as you can see. Next again it is same the same if you study one program that is having full of all the operations you can go through that. Next is about again it is J button and J toggle button. It is also almost same. You can go through that. But here what it is after that set visible true. Here if action performed e dot get source is equals to clock you will set text as clock and if it is a watch you will set as watch because here you have created clock and watch as new J button and J toggle button. Okay that's all here it is the difference. And next is about the calculator arithmetic operations. You can see here Jframe, J text field, J panel and panel set layout. You are setting the layout and you are setting the layout as border layout. There was flow layout if you remember. Okay, here it is border layout and border layout of north and center. Here you will set the size and here it is exit on close and set of true. Next event handling that is first what are the components means source. Source is what component generating the event. Okay, what is the component that is helpful to generate the event first and next it will be having the object created when the action occurs. Next is the listener that is used to handle the events. Next, what is the steps means create component implement listener register and you will handle again you'll be creating uh frame button and label set bounds and add actioner listener. See here this is one of the important concept. See here you will be giving us add action listener of this.

[00:24:20]Okay this keyword you'll be using uh add dot button and label set size set layout as null and set visible of true and exit of exit on close. Here also settext you will be button click but uh new event demo you will be calling. Okay.

[00:24:38]Next is again the J checkbox and J radio button. It is also almost same but here what it is just you will be adding BG dot add of R1 and R2. But what is R1 and R2? Radio button one and radio button two. Okay, that you'll be adding to what? BG. Okay, that is the button group which you have created.

[00:24:58]Next is process of custom painting means what is uh you will be extending the J panel override and call the super.paint of component. Next you will be using uh graphics methods. Okay, that's all. Next we'll be moving to module four.

[00:25:25]This is one of the important question again life cycle of serlets that is having loading and in instantiation that is first it will initialize then it will initialize using init method you will handle the request handling will be called next the destroy that is the destruction will be done again you can use the diagram that is flow diagram loading init service and destroy.

[00:25:56]These all are the methods.

[00:25:58]Next is what are the core interfaces?

[00:26:01]That means methods what are they used means service init and destroy in serlet. In serlet request it is get parameter and get input stream. What is the input stream and parameter which is given. Next is get writer and content type that is in response when uh client sends a response to the user. Okay. Next is serlet configuration will be having and serate context. Next is core interfaces means serate request again it is parameter cookies and methods response uh direct and cookie redirect session and all set attribute get attribute. Next what is JSP? Okay, Java server pages. It is a serverside technology used to create dynamic web pages using HTML and Java code and you will be using some of the tags. Okay, directive tags. Okay, directive tags are used to instruction that is when you provide uh users will provide some of the instruction right that will be used in directive tag that is having percentage at directive attribute is equal to value which you give. Next you will be having some example you can see.

[00:27:08]Next is declaration. Declaration will be done by percentage not okay not of declaration what you do. Inti is equals to 10 you can do. Next is scriptlet.

[00:27:18]Scriptlet is to write the java code that is out. Ln you will write it as. Okay.

[00:27:24]Next is expression. When you write the expression again it is equals to you will be using action means again you will be using JSP is to include page and you will be using the file name which I have given. Next what is two cookie methods and explains how cookie can be handled using serlets. Two cookie method means set max age that is it will be setting the expiry time for the cookies that is set max age of 60 into 60. Okay.

[00:27:52]Next is uh get name. Uh it will be getting the cookie name and you can write the set name also that is setting the cookie name. Okay, that is how you can see. Next is handling uh first you have to create a cookie then you have to add cookie to the response and uh read cookie from the request. Okay. Now here you can see io start serlet and http you will be using do get method. IO exception input output exception set content type is equal to text or HTML printer out is equals to rest.getriter new cookie of username and XY Z you will be adding the cookie cookie added cookie of C is equals to get cookies and if it is null you will be printing that is you'll be using the for loop that is to print the value of that get name and the value of the cookie. Okay.

[00:28:44]Next is uh using HTTP get and post. That is again here you'll be using the get and the post method. Next is core classes. Again this has been explained.

[00:28:54]Next is um two parameters. You can see this HTML program. I'll be explaining first you'll be having HTML and body.

[00:29:02]Form action you'll be providing as some serlet method is equals to post. when you input type is equal to text you'll be giving name is equal to N1 and you will be creating a BR and next is input type again and you'll be adding the button uh submit value and add okay now what you have created the form here it will be closing in HTML if it is like this slash it is closing here if it is started here it is closing here body is started here body is closing here HTML is started here HTML is closing that's all you can see this serlet Next is cookies are small text that is used to maintain the user information. Okay.

[00:29:41]Next is all it's been explained. Java server pages it's also explained. Next you can see serlet request and response.

[00:29:49]Again it is method get method set set cookies send HTML response add cookies redirect to the pages and all.

[00:29:57]Next we will be going to the module five. This is also one of the important question. I'll be just briefing about it.

[00:30:09]JDBC process with the code snippet means first you'll be importing the packages.

[00:30:13]Load and register the driver. Next you'll establish connection between the database. Next you'll create the statement. You will execute the query which is there and you'll process the result and you'll close the connection.

[00:30:24]That is the process which you follow.

[00:30:25]Next you can see the program here in the main function. Try and catch you'll be using try. Connection you'll be creating first and statement. You'll be adding the create statement. In result, you'll be giving execute query. And next and in catch you'll be giving the exception as e. Okay. Next is meta data object that is get database product name, driver name, username, tables and supports transaction that checks whether uh it is supporting transaction or not. Answer will be true or false. Okay. Next you can see three kinds of exceptions that occur in JDBC that is SQL exception that is when you give some of the wrong query or wrong syntax and all you'll be getting this exception SQL warning that is database warning data truncation that happens when see when you have 1 2 3 4 5 6 columns right this is uh you give seventh column in some of the input that will give this data truncation.

[00:31:26]Next is associ uh discuss the steps create the association between JDBC OBC driver. Okay. First you have to open the control panel. You have to open the data source. Next select system DSN. Choose the driver. Enter the DSN name. Select the database. Save the configuration.

[00:31:44]Next syntax is class.class name and you'll be giving JDBC and here driver manager.get connection and the name which you have given. Four types. Here it is JDBC, OBC and next is native API and network protocol and thin driver.

[00:32:04]These are the four types of drivers.

[00:32:05]Next is about the what are the statements that are scalable and prepared statements. Okay, statements are nothing but they are used to explain the execute the queries. When you have SQL queries in which it is used to execute those queries is called as what?

[00:32:20]Statements.

[00:32:22]Okay. Now prepared statements means it is parameterized constructor that is in brackets you'll be providing some of the parameters and calable means it is used to store the procedures okay that is my proc next is transaction processing that is first you will be disabling the auto commit auto commit means autosaving okay that you'll be disabling next executing the queries commit the transaction then roll back and example see try catch again you'll be using see first set auto commit execute update execute update then you'll be committing in exception you'll be roll back okay this is next collection con collection pooling this eighth question is just the syntaxes I have given so you can see those next is key classes Java interf connection statement prepared statement calible statement result set this both is explained statement is also explained when you have connection establishment you use this and next is result set to store the query result next is what are the class and again here it is data source row set and tabular data connection pool data source. Okay. Next is set auto commit that is commit roll back set auto commit. This also you can see it is also almost same. Again as I said if you want the same PDF do DM me on Instagram account. My Instagram account is Spotify learn. And thank you for watching the video. Make sure to like, share, comment and subscribe. If you have any doubts in any of the modules, I have explained it very very quickly because it should be a oneshot video so that even you don't have uh like to spend much of the time. So I have covered within uh 30 to 35 minutes.

[00:34:02]I hope you have understood everything.

[00:34:03]If you have any doubts or any questions related to anything, please do let me know in the comment box. Thank you for watching the video. Make sure to like, share, comment and subscribe to my YouTube channel. Next video I'll be making sure that what I upload that will be on based on lab component or anything else based on important questions only as I have covered. Uh DBMS it's almost done. I'll be covering almost all the modules and all. Do let me know next which subject which module do you need.

[00:34:29]I'll be uploading as soon as possible.

[00:34:31]Thank you for watching. Make sure to like, share, comment and subscribe to my YouTube channel. Until next video.

[00:34:35]Bye-bye.