Part 8 | Constructors, Inheritance, Polymorphism | Java Programming Tamil Tutorial

In today's chapter, we'll explore advanced OOP concepts in Java, including Constructors, Inheritance, and Polymorphism, focusing on efficient code reusability and flexibility. We'll also solve coding problems to reinforce these concepts.

___________________________________________________
Timecode
0:00 Title theme
0:21 Daily Tip
8:50 Winners
9:32 Static Explanation
14:19 Static Sample code
26:46 Three Class” Explanations
29:59 Three Class Sample Code
35:58 Constructor Explanation
40:32 Constructor Sample Code
44:12 This Expalnation
49:00 This Sample code
54:12 Inheritance” Explanation
1:02:01 Inheritance” Sample Code
1:06:24 Multiple Inheritance”
1:09:39 Inheritance Using Constructor"
1:12:47 Inheritance Using Constructor” Sample Code
1:15:10 Method Overloading in Polymorphism”
1:19:04 Method Overriding in Polymorphism”
1:21:59 Super Explanation -
1:25:10 Super Sample Code
1:33:23 String Explanation
1:34:55 Object Bonus Tip
___________________________________________________

This video is part eight video of the series and today we will be discussing the general aspects of programming such as Constructors, Inheritance, and Polymorphism in Java programming.

#100K Coding Challenge is a series of 10 programming tutorial videos in Tamil. It is an initiative by Team Brototype to teach programming in the simplest possible manner across Tamil Nadu and it is completely FREE of cost.

About us:

Brototype is more than just a YouTube channel. We are Kerala's Top community for aspiring techies looking to learn coding and land their dream IT jobs. Our YouTube channels provide free programming tutorials and tech videos in regional languages.

We also have a 7-month offline training program called 'Brocamp', where students from any educational background can learn coding in an office environment and pay the fee after placement. We have helped 600+ students get high-paying IT jobs. As a result, we are now focusing on Tamil to reach a wider audience and help more people improve their lives.

For enquiries & updates WhatsApp us to 9995270355

[vengadesh]

neega nalla puriyavaikurathuku (ex; function, variables, object, class different chalk piece color use pannuringaleyyy....anga iruku anney unga brain...😇

[sivakumarm]

Assignment deleted nu iruku bro. Open aaga maatikidhu??

[tamilarasandhayalan]

//1.To check number is even or odd
public class EvenOdd {
EvenOdd(int a){
if (a%2==0){
this.checkNumber();
}
else{
System.out.println("The number is odd");
}
}
public void checkNumber(){
System.out.println("happy number");
}
public static void main(String ar[]){
EvenOdd obj = new EvenOdd(168);
}
}
Output:
happy number
//2.To write a program and calculate the following problems using constructor overload
public class Calc {
Calc(String str, int a, int b) {
if (str == "add") {
System.out.println("Addition is " + (a + b));
} else if (str == "subtract") {
is " + (a - b));
}
else {
System.out.println("Enter valid arguments to constructor");
}
}

Calc(String str, double a, double b) {
if (str == "divide") {
System.out.println("Division is " + (a / b));
} else if (str == "multiply") {
is " + (a * b));
}
else {
System.out.println("Enter valid arguments to constructor");
}
}
public static void main(String ar[]){
Calc c1 = new Calc("add", 10, 84);
Calc c2 = new Calc("subtract", 70, 35);
Calc c3 = new Calc("multiply", 80.5, 84.3);
Calc c4 = new Calc("divide", 10.5, 5.7);
Calc c5 = new Calc("divide", 10.5, 5);
Calc c6 = new Calc("div", 10.5, 5);
}
}
Output:
Addition is 94
Subtraction is 35
Multiplication is 6786.15
Division is 1.8421052631578947
Division is 2.1
Enter valid arguments to constructor
//3.To write a program for calculate the following problems and display the result
//Sum.java
public class Sum {
double pi = 3.14;
public int Rectangle(int length, int width){
return length * width;
}
public int Square (int side){
return side * side;
}
public int Triangle(int base, int height){
return (base * height)/2;
}
public double Circle (int radius){
return pi*(radius * radius);
}
}
//Result.java
public class Result extends Sum {

public void displayRectangle(int res) {
System.out.println("Area of Rectangle:" +res);
}

public void displayTriangle(int res) {
System.out.println("Area of Triangle:" + res);
}

public void displaySquare(int res) {
System.out.println("Area of Square:" + res);
}

public void displayCircle(double res) {
System.out.println("Area of Circle:" + res);
}
public static void main(String ar[]){
Result r1 = new Result();
r1.displayRectangle(r1.Rectangle(10, 6));

r1.displayTriangle(r1.Triangle(24, 55));

}
}
Output:
Area of Rectangle:60
Area of Square:64
Area of Triangle:660
Area of Circle:113.04
Name:Tamilarasan
Contact:9791596659

[sajithas]

1st Q

public class Try {
void checkNumber(){
System.out.println("Happy number");
}
Try(int value){
if(value%2==0) {

this.checkNumber();
}
else {
System.out.println("Odd");
}
}
public static void main(String args[]) {
Try a=new Try(10);
}
}



2nd Q

public class Calculator {


Calculator(int a, int b, int c, int d){
"+(a-b-c-d));
}
Calculator(int a){
"+(a+99));
}
Calculator(double a, double b, double c){
"+(a/b)/c);
}
Calculator(int a, int b){
"+(a*b));
}
public static void main(String[] args) {

Calculator multiplication=new Calculator(3, 7);
Calculator addition=new Calculator(1);
Calculator subraction=new Calculator(60, 40, 77, 100);
Calculator divition=new Calculator(4, 1, 6);


}

}


3rd Q


public class Sum {
double Result;
void Rectangle(int length, int width) {
Result = length * width;
display: "+Result);
}
void Square (int side) {
Result = side * side;
System.out.println("Square display: "+Result);
}
void Triangle(int base, int height){
Result = 0.5 * base * height;
display: "+Result);
}
void Circle (double radius){
Result = Math.PI * radius * radius;
System.out.println("Circle display: "+Result);
}

}


public class Result extends Sum {

public static void main(String args[] ) {

}

}


public class ClassDisplay {

Result Object=new Result();
void displayRectangle() {
Object.Rectangle(5, 6);
}
void displaySquare () {
Object.Square(77);
}
void displayTriangle () {
Object.Triangle(90, 60);
}
void displayCircle () {
Object.Circle(45.10);
}
public static void main(String args[] ) {

ClassDisplay display=new ClassDisplay();

display.displaySquare();
display.displayTriangle();
display.displayCircle();
}

}


Name:Sajitha
No:9150434998

[Sirius_viki]

question2



public class Sample1 {
Sample1(){
int sum;
int a=10, b=20;
sum=a+b;
System.out.println("The result Addition is"+sum);
}
}

public class Sample2 {
Sample2(){
int a=10;
int b=10;
int sum;
sum=a/b;
System.out.println("The result Division is"+sum);
}
}

public class Sample3 {
Sample3(){
int a=10;
int b=20;
int sum;
sum=a*b;
System.out.println("The result Multiplication is"+sum);
}
}

public class Sample4 {
Sample4(){
int a=10;
int b=20;
int sum;
sum=a-b;
System.out.println("The result Subtraction is"+sum);
}
}

public class Hello1 {
public static void main(String[] args) {
Sample1 s1=new Sample1();
Sample2 s2=new Sample2();
Sample3 s3=new Sample3();
Sample4 s4=new Sample4();
}

}
out put
The result Addition is30
The result Division is1
The result Multiplication is200
The result Subtraction is-10

question number 2 out put correct sir or

[rkram]

Q.1)


public class Assign1 {
void checkNumber(){
System.out.println("Happy number");
}
Assign1(int num){
if(num%2==0) {

this.checkNumber();
}
else {
System.out.println("Odd");
}
}
public static void main(String ar[]) {
Assign1 call=new Assign1(10);
}
}

Output:
Even
Happy number


Q.2)



public class Cal {

Cal(int a){
System.out.println("add: "+(a+50));
}
Cal(int a, int b, int c){
System.out.println("sub: "+(a-b-c));
}
Cal(double a, double b){
System.out.println("div: "+(a/b));
}
Cal(int a, int b, int c, int d){
System.out.println("mul: "+(a*b*c*d));
}
public static void main(String[] args) {

Cal add=new Cal(10);
Cal sub=new Cal(10, 20);
Cal div=new Cal(10, 20, 30);
Cal mul=new Cal(10, 20, 30, 40);

}

}


Output:
add: 60
div: 0.5
sub: -40
mul: 240000


Q.3)



public class Sum {
double ans;
void Rectangle(int length, int width) {
ans = length * width;
Display: "+ans);
}
void Square (int side) {
ans = side * side;
System.out.println("Square Display: "+ans);
}
void Triangle(int base, int height){
ans = 0.5 * base * height;
Display: "+ans);
}
void Circle (double radius){
ans = Math.PI * radius * radius;
System.out.println("Circle Display: "+ans);
}

}



public class Result extends Sum {

public static void main(String[] args) {

System.out.println("This is Class Result");
}

}



public class ClassDisplay {

Result TotObj=new Result();
void DisplayRectangle() {
TotObj.Rectangle(20, 30);
}
void DisplaySquare () {
TotObj.Square(50);
}
void DisplayTriangle () {
TotObj.Triangle(30, 40);
}
void DisplayCircle () {
TotObj.Circle(80.10);
}
public static void main(String[] args) {

ClassDisplay Display=new ClassDisplay();

Display.DisplaySquare();
Display.DisplayTriangle();
Display.DisplayCircle();
}

}


Output:
Rectangle Display: 600.0
Square Display: 2500.0
Triangle Display: 600.0
Circle Display: 20156.489881358648



Name: Ramkumar
Phone:[phone]

[CIBI]

Finally oops questions giving headache

[kumaran-wy]

Hello sir, YOUR vedio are help for my syllabus please explain about structure, union, pointer,

[balajiv]

Anna ye kitta nalla laptop illa but government laptop dha iruku athula intha installation lam pana mudiyuma 📌

[LinXBalajiN]

.NET Course Please Vro... Thank you Good Explanation.! 😇

[Sirius_viki]

question3
public class Sum {
double result;

public void Rectangle(double length, double width) {
result = length * width;
}

public void Square(double side) {
result = side * side;
}

public void Triangle(double base, double height) {
result = 0.5 * base * height;
}

public void Circle(double radius) {
result = Math.PI * radius * radius;
}
}
public class Result extends Sum {
public void displayRectangle(double length, double width) {
Rectangle(length, width);
System.out.println("Area of Rectangle: " + result);
}

public void displaySquare(double side) {
Square(side);
System.out.println("Area of Square: " + result);
}

public void displayTriangle(double base, double height) {
Triangle(base, height);
System.out.println("Area of Triangle: " + result);
}

public void displayCircle(double radius) {
Circle(radius);
System.out.println("Area of Circle: " + result);
}
}

public class Main {
public static void main(String[] args) {
Result calculated = new Result();

calculated.displayRectangle(10, 13);
calculated.displaySquare(8);
calculated.displayTriangle(40, 80);

}
}

[nitheeskumar]

Digital marketing cource pathi introduction kutunga anna

[afterwecollidedvaathi]

Entha 100k coding phone la kathuka mudiyatha sir??

[fogy]

bro c++ pointers concept ku oru video podunga anna

[s.thamimansari]

Anna Tamil la computer science group padicha it la job kadaikuma

[santoshn]

Advance java series podunga bro pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls

[maranmaran]

Bro 2nd question konjam understand agala
Konjam explai panringala

[Akash-ymy]

3. 3a) import java.io.*;
public class Sum {
private int number1;
private int number2;

public Sum(int num1, int num2) {
number1 = num1;
number2 = num2;
}

public int calculateSum() {
return number1 + number2;
}
}

class Result {
public static void main(String[] args) {
Sum sum = new Sum();
int result = sum.calculateSum();
System.out.println("The result is: " + result);
}
}

3b)class Sum {
protected int number1;
protected int number2;

public Sum(int num1, int num2) {
number1 = num1;
number2 = num2;
}

public int calculateSum() {
return number1 + number2;
}
}

class Result extends Sum {
public Result(int num1, int num2) {
super(num1, num2);
}

public void displayResult() {
int result = calculateSum();
System.out.println("The result is: " + result);
}
}

public class Main {
public static void main(String[] args) {
Result result = new Result();
result.displayResult();
}
}

3c)import math

class Sum:
def calculate_rectangle_area(length, width):
return length * width

def calculate_square_area(side):
return side * side


def
return math.pi * (radius ** 2)


def calculate_triangle_area(base, height):
return 0.5 * base * height

3d) class Display:
def display_rectangle(self):
print("Displaying rectangle")


def display_square(self):
print("Displaying square")


def display_circle(self):
print("Displaying circle")


def display_triangle(self):
print("Displaying triangle")

[vi.p]

sir am unable to understand its too difficult

[mr.strange]

Unity game development poduga sir pls