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Creating a Simple calculator using the if else if and else statements in JAVA

import java.util.Scanner;

public class Main {
public static void main(String[] args) {
Scanner scanMe = new Scanner(System.in);

System.out.println(" This is a Calculator Sensor \n");



System.out.print("Enter the first Number: ");

double number1 = scanMe.nextDouble();



System.out.print("Enter the second Number: ");

double number2 = scanMe.nextDouble();

scanMe.nextLine();





System.out.println("What operation do you want to perform? ");

String operation = scanMe.nextLine();


// sum for addition
if (operation.equals("sum")) {

  System.out.printf("%f + %f = %f", number1,number2, number1 + number2);

// sub for subtraction
} else if (operation.equals("sub")) {

  System.out.printf("%f - %f = %f", number1,number2, number1 - number2);

// mul for multiplication 
} else if (operation.equals("mul")) {

  System.out.printf("%f * %f = %f", number1,number2, number1 * number2);

 
// div for division 
} else if (operation.equals("div")) {

  if (number2 == 0) {

    System.out.println("can not divide by ZERO(0).");

  } else {

    System.out.printf("%f / %f = %f", number1,number2, number1 / number2);

  }

} else{

  System.out.printf("%s is not a supported operation! ", operation);

}



scanMe.close();


}

}

2D arrays in JAVA

Multidimensional arrays
public class Main {
public static void main(String[] args) {
// 2D array = an array of arrays

	String[][] cars = new String[3][3];

	

	cars[0][0] = "Camaro";

	cars[0][1] = "Corvette";

	cars[0][2] = "Silverado";

	cars[1][0] = "Mustang";

	cars[1][1] = "G-Wagon";

	cars[1][2] = "Ferrari";

	cars[2][0] = "Lambo";

	cars[2][1] = "Ranger";

	cars[2][2] = "Tesla";

	

	for(int i=0; i<cars.length; i++) {

		System.out.println();

		for(int j=0; j<cars[i].length; j++) {

		System.out.print(cars[i][j] +" ");

                    }

	}


}

}

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