Question

Using a switch case statement, write a program to enter the value of r1 and r2. Calculate and display the equivalent resistances accordingly.

Answer 1

$code...$

// here is three input.

// first for r1 value may think 5

// second for r2 value think 7

// third for option you connected the register in series then enter 1 in parallel then enter 2.

import java.util.Scanner;

public class Program

{

public static void main(String[] args) {

Scanner sc=new Scanner(System.in);

// taking input the value of registance:

System.out.println("enter the resistance of first register");

double r1=sc.nextDouble();

System.out.println("enter the resistance of second register");

double r2=sc.nextDouble();

// give option to choose your register in series or parallel:

System.out.println("if your register are connected in series enter 1. \nif your register are connected in parallel enter 2. ");

int choose=sc.nextInt();

double R1=0.0;

switch(choose){

case 1:

R1=r1+r2;

System.out.println("equivalent resistance"+r1+"and"+r2+"register connected in series is"+R1);

break;

case 2:

R1=(r1*r2)/(r1+r2);

System.out.println("equivalent resistance of "+r1+" and "+r2+" registance register connected in parallel is"+R1);

break;

default:

System.out.println("sorry invalid input");

}

}

}

Answer 2

Answer:

Explanation:question-1 write a program using switch case in which the user is asked to enter the marks and gets the grade accordingly. The criteria of the grade is given below: Above 90. - 70-89.99, 60-69.99, 50-59.99, 40-49.99, Below 40. Grade A , Grade B , Grade C , Grade D , Grade E , Fail