Part 9 | Abstract Class, Exceptions, Threads | Java Programming Malayalam Tutorial

No need of thorough understanding
But need to know this kind things are there
Do self learning also in google


After 1 or two projects you will get familiar with all features

Best accomplished

sir nan vs codil java program run cheyumbol error canni kunu but ath nandebug cheyumbol work aakunu

INTERFACE

class no:1

public interface Hello {

void display(String text);


}



---------------------------------------------------------------------------------------------



class no:2

public class TextScanner {

Hello obj;

TextScanner(Hello obj){

this.obj=obj;

}

void Scan() {

//api code//


String text="interface program";
obj.display(text);
}

}



----------------------------------------------------------------------------------------------

class no:3(MAIN)


class Sample implements Hello {

public void display(String text) {

System.out.println(text);

}

Sample(){

TextScanner ts=new TextScanner(this);
ts.Scan();


}

public static void main(String[] args) {

Sample s=new Sample();

}




}



-----------------THE END--------------

interface Class
public interface hello {
public void onText();
public void message();
}

2nd class
public class textScanner implements hello {
public void onText() {
System.out.println("this is onText sample");
}
public void message() {
System.out.println("this is anothere message");
}
}

mainClass

public class mainClass {
public static void main(String[] args) {

//create object for textScanner
textScanner ts=new textScanner();


//using intrerface method
ts.message();
ts.onText();
}
}

in abstraction , abstract classnu obj undakkan pattilla enn paranj then how Hello obj; in textscanner

(B a)
a.display();


Aano varua

Poli class🎉

Ith angot manasilavunilallo please ithonn clear cheyth tharamo @brototype

I don't understand abstract can you explain in a more simpler way 😁

Interface explain cheyunna video cheyyamo

Hello obj; enthaannn??? Abstract clasnn object create cheyyaan patillalooo

superb

SIR SHORT VIDEOS SENT CHEYYAVO

Constructirinu mump public koduthath enthina

Abstract class manassilakathavarkk.... Kurachu perude doubts kandu, Abstract class aaya Hello kk object indakkan kazhiyillaaloo.... Pinnenganeyaa TextScanner enna classil Hello obj; cheythathu ennu.
 Enikk manassil aayathu parayaam. Abstract classinu object indakkan kazhiyilla. But object declare chyyan kazhiyum. Ath initialize cheyyan kazhiyilla. Eg:- Hello oru abstract class aahnenkil Hello obj; ingane object declare cheyyaam. But Hello obj = new Hello(); ingane initialize cheyyumbol error varum. Ivide namukk hello il ninn oru abstract methodilekk value assign cheyyenda aavishyam indu. Normally nokkumbol ath possible alla. But, athine inherite cheytha classil ninnum call cheyyan saadhikkum. Athinu, Main (Sample) classil ninnum TextScanner enna classinu object create cheyyumbol athinte constructorilekk Main classinte object (this) pass cheyyunnund. Appol TextScanner enna classil athinte constructor codeil nerathe Hello yude object declare cheyth vechillee... Athilekk ee Main classinte object assign cheyyunnu. Aadyam Hello obj; ingne veruthe declare cheythu vechu. Athinu shesham constructor codeil athilekk kittunna objectine declare cheytha objectilekk assign cheythu. this.obj=obj; ithil 'this.obj' nerathee declare cheytha global object aanu. Athilekk constructorilekk varunna object ne assign cheyyunnathaanu = obj;

Manassilaayo😊

Ith enthinanu cheyyunnath enn vechaal, TextScanner enna classil ninnum direct aayitt Hello yude classile method neyoo variablesneyoo call cheyyaano values assign cheyyaano kazhiyilla. Appol athine inherite cheytha classil ninnum avaye call cheyyanum values assign cheyyanum kazhiyum. Kaaranam Hello classinte oru copy inherite cheytha classileko varum. Athinaanu Main classil Hello ne inherite cheythitt Main classinte objectine TextScanner classilekk pass cheythath.

Main classil constructor ne create cheyyathe thanne Main classinte object TectScanner lekku pass cheyyan kazhiyum. Athinu main method nte ullil thanne Main classinte object create cheythitt ath pass cheythal mathi. Eg:-

Main mainObj = new Main();
TextScanner ts = new TextScanner(mainObj);

Ingane cheyyumbol Main classinte object pass cheyyeem cheyyam, error um indavula, code um run aavum.

Sample file :- (Main class)

public class Main extends BaseClass
{

public static void main(String ar[])
{
Main mainObj = new Main();
TextScanner ts = new TextScanner(mainObj);
ts.scan();
}

@Override
void onText(String text)
{
System.out.println(text);
}
}


(BaseClass - abstract class aanu)
Enthelum mistake/error indenkil parayaneee 😁😅

Thank you sir

sir interface video upload cheyyuvoo.....

I watched that abstraction portion 3 times then i just got it.. 🔥i feel very very happy... Thankue from my heart sir ❣️

🎉

could you convey more details about abstraction?

Watnted abstraction vedio

Sir Abstract class onnum koodi cheyyan pattuo?

Sir orupaad kalaam ayi ee channelinety oro videoikuk vannu coment chetiney.. Please make a videos for testers also.. Automation testers also equal to a dev nowdays please consider and make. Videos for testers🥹🥹🥹

Interface Program


public interface Hello {

public void onText(String text);
}





public class TextScanner {

Hello obj;

public TextScanner(Hello obj) {
this.obj=obj;
}
void Scan() {

String text="Scanned Text";

obj.onText(text);
}
}





public class Sample implements Hello {

public void onText(String text) {
System.out.println(text);
}

Sample(){
TextScanner ts=new TextScanner(this);
ts.Scan();

}

public static void main(String[] args) {
Sample s=new Sample();
}
}

Sample classil Hello class nte object create cheyyumbol enthaan
*Hello obj=new Hello (); *
enn kodukkathath??abstract ayathukondanoo verum
*Hello obj; *
enn koduthath?

Can anyone tell me why i can't use public class

abstract manassilavaan 3 times kanannam

Thank you sir

Super

Sample () cinstructor crete chyth main method il obj um create chyth but sample il testscanner ts= new testscanner(this) pass chytel error kanikunn. main il angine chyan pattilla enn paranjallo. So sample constr vach chytapozhum error varunn.athenth angine onn paranj taramo

INTERFACE
public interface S {



public void show();
}




public interface A {

public void cross();
}


public class Showable implements S, A {

public void show() {
System.out.println("twinkle");
}




public void cross() {
System.out.println("star");
}




public static void main(String[] args) {
// TODO Auto-generated method stub

Showable obj=new Showable();

obj.show();
obj.cross();
}

}

Thank u adhayam kettaram sir enthallan paryunne vijarchu 2,3 pravishyam kandappoll manasilayi nth detail aayi sir karyam paryunnath enn

Interface

interface class:

public interface Hello {
abstract void onText(String text);
}


Definition Class:

public class TextScanner {
Hello obj;
public TextScanner(Hello obj){
this.obj=obj;
}
void scan(){
String text="Scanned Text":
obj.onText(text);
}


}

Implements Class/ Subclass:

public Sample implements Hello(){

abstract void onText(String text)
System.out.println(text);

public Sample(){

TextScanner ts=new TextScanner(this){
ts.scan();
}
public static void main(String ar[]){
Sample s=new Sample();
}

Sir abtrct class onnum manasilaakunnilla saprate video venam😥 plese

sososososoososo sisisiisisisisisiissiissmpleeeeeeeeeeeeeeeeeeeeeeeeeeeeeee

Abstract il textscanner Enna classil hello obj; enn call cheyun und Ath mannasalayilla karnnam Hello oru abstract class alley (hello obj; Hello Enna classnne object calling ano)

Ninth Video Completed ✅

abstraction is gonna be really hard guys:(

Exception enthuvaa dont get idea🥲

Hi Sir,

I came to know about this channel recently… Great classes and i am an aspirant thoroughly following and started to learn from your online classes


Could you please make another video on abstract class…

Thanks

string or character userntennu input akanum padipikarnnu

abstract concept ithre nannayit vere video il kanditilla❤💥

public interface Restricted {

public void ontext(String name);
public void scantext();
}

public class TextScanner {
Restricted obj;

TextScanner(Restricted obj){
this.obj=obj;
}
public void call_interface(String name) {
obj.ontext(name);
obj.scantext();
}
}

public class Main implements Restricted{

String name;

Main(String name){
this.name=name;
TextScanner txtscn=new TextScanner(this);
txtscn.call_interface(name);

}


public static void main(String[] args) {
Main mn=new Main("The names");
}

public void ontext() {
System.out.println("The text contains " + name);

}public void scantext() {
System.out.println("The Text has been scanned successfully !!");
}
}

Abstract manasilathavar ath 2 ,3 thavana kandaal mathi..Koode ath cheyth koodi nokkiyaal crct aayi manasilavum..Enikum ith aadhyam onnum manasilayilla njan 3 thavana kandathinu shesham aanu enik manasilaayath