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Commit 9f61866

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1 parent a15f220 commit 9f61866

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‎Calc/Add.java‎

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package Calc;
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import java.util.Scanner;
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public class Add {
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int sum;
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public void sum()
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{
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System.out.print("Enter the first number: ");
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Scanner sc = new Scanner(System.in);
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int firstNum = sc.nextInt();
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System.out.print("Enter the second number: ");
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int secondNum = sc.nextInt();
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sum = firstNum+secondNum;
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System.out.println("Sum=" + sum);
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}
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}

‎Calc/Subtract.java‎

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package Calc;
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import java.util.Scanner;
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public class Subtract {
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int difference;
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public void subtract()
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{
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System.out.print("Enter the first number: ");
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Scanner sc = new Scanner(System.in);
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int firstNum = sc.nextInt();
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System.out.print("Enter the second number: ");
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int secondNum = sc.nextInt();
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difference = firstNum-secondNum;
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System.out.println("Difference=" + difference);
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}
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}

‎Q10_Overload_Area_fun.java‎

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//Q10. WAP to show the overloading of area function.
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package JAVA_Lab_File;
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import java.util.Scanner;
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public class Q10_Overload_Area_fun {
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static void area(double radius){
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double area = Math.PI * radius * radius;
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System.out.print("Area of Circle is: " + String.format("%.5f", area) + " sq. units");
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}
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static void area(double base, double height){
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double area = 0.5*base*height;
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System.out.print("Area of Triangle is: " + String.format("%.5f", area) + " sq. units");
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}
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public static void main(String[] args) {
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Scanner sc = new Scanner(System.in);
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System.out.println("Calculate Area: \n1.Circle\n2.Triangle\nChoice: ");
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int choice = sc.nextInt();
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if(choice == 1){
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System.out.print("Enter the radius of the circle: ");
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double radius = sc.nextDouble();
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area(radius);
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} else if (choice == 2) {
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System.out.print("Enter the base and height of the triangle: ");
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double base = sc.nextDouble();
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double height = sc.nextDouble();
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area(base, height);
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}else {
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System.out.println("Invalid choice");
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}
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}
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}

‎Q11_isArmstrong.java‎

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//Q11. WAP to check whether a given number is Armstrong or not.
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package JAVA_Lab_File;
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public class Q11_isArmstrong {
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public static void main(String[] args) {
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int number = 153, originalNumber, remainder, result = 0;
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originalNumber = number;
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while (originalNumber != 0)
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{
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remainder = originalNumber % 10;
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result += Math.pow(remainder, 3);
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originalNumber /= 10;
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}
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if(result == number) {
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System.out.println(number + " is an Armstrong number.");
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} else {
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System.out.println(number + " is not an Armstrong number.");
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}
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}
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}

‎Q12_Implement_interface.java‎

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//Q12. WAP to check whether a given number is Armstrong or not.
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package JAVA_Lab_File;
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interface Animal {
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public void animalSound();
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public void sleep();
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}
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class Siyaar implements Animal {
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public void animalSound() {
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System.out.println("The Siyaar howls: Aaooo Aaooo");
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}
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public void sleep() {
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System.out.println("Zzz");
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}
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}
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public class Q12_Implement_interface {
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public static void main(String[] args) {
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Siyaar S_Siyaar = new Siyaar();
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S_Siyaar.animalSound();
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S_Siyaar.sleep();
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}
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}

‎Q13_SumAndSub_Pack.java‎

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//Q13. WAP to create a package Calc with methods Sum() & Sub() and show the Implementation in a class.
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package JAVA_Lab_File;
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import Calc.Add;
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import Calc.Subtract;
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import java.util.Scanner;
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public class Q13_SumAndSub_Pack {
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public static void main(String[] args)
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{
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System.out.println("Sum ");
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System.out.println("Subtract ");
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System.out.print("Enter your choice: ");
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Scanner sc = new Scanner(System.in);
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int t = sc.nextInt();
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switch (t) {
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case 1 -> {
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Add a = new Add();
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a.sum();
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}
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case 2 -> {
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Subtract s = new Subtract();
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s.subtract();
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}
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default -> System.out.println("invalid choice");
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}
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}
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}

‎Q14_Reverse_Num.java‎

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//Q14. WAP to print reverse of a given number.
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package JAVA_Lab_File;
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import java.util.Scanner;
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public class Q14_Reverse_Num {
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public static void main(String[] args) {
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Scanner sc = new Scanner(System.in);
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System.out.println("Enter a no. to reverse it: ");
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int num = sc.nextInt();
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int r_num=0;
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while(num>0)
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{
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r_num=(r_num*10)+(num%10);
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num=num/10;
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}
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System.out.println("Reversed: "+ r_num);
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}
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}

‎Q15_Single_catch.java‎

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//Q15. WAP to show the working of a single Catch block.
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package JAVA_Lab_File;
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public class Q15_Single_catch {
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public static void main(String[] args) {
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try{
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int a = 10;
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int b = 0;
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int c = a/b; // exception
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}catch(ArithmeticException e){
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System.out.println(e);
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}
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}
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}

‎Q16_Throw_and_Throws.java‎

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//Q16. WAP to show working of throw and throws for handling exceptions
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package JAVA_Lab_File;
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import java.io.IOException;
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public class Q16_Throw_and_Throws {
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public static void main(String[] args) throws IOException {
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//declare exception
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Test.method();
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System.out.println("The Normal flow...");
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}
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}
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class Test {
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static void method()throws IOException
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{
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throw new IOException("Zaphkiel error");//checked exception
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}
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}
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