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AlgebraicOperations.java

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import java.util.Scanner;

public class AlgebraicOperations {

public static void main(String args[]) {

//Declaring variables

double n1,n2,res = 0;

System.out.println("Algebraic Operations of two Numbers\n---");

Scanner scanner = new Scanner(System.in);

System.out.println("Enter the number 1: ");

n1 = scanner.nextDouble();

System.out.println("Enter the number 2: ");

n2 = scanner.nextDouble();

System.out.println("---\nEnter 1 for addition,\n2 for subtraction\n3 for multiplication\n4 for division");

int operator = scanner.nextInt();

//Solving by if else loops

if(operator==1) {

res =n1+n2;

}

else if(operator==2) {

res =n1-n2;

}

else if(operator==3) {

res =n1*n2;

}

else if(operator==4) {

res =n1/n2;

}

else{

System.out.println("Error!");

end();

}

System.out.println(res);

end();

scanner.close();

}

static void end() {

System.out.println("Enter Y to continue or any key to exit!");

Scanner getEndOption= new Scanner(System.in);

String option = getEndOption.next();

if(option.equalsIgnoreCase("Y")) {

main(null);

}

else {

System.out.println("The Program has ended. Please run the program again.");

}

getEndOption.close();

}