Question

This is for Java programming. Please use ( else if,) when writing the program)

Write a java program to calculate the circumference for the triangle and the square shapes:

The circumference for: Triangle = Side1 + Side2 +Sid3

Square = 4 X Side

When the program executes, the user is to be presented with 2 choices.

Choice 1 to calculate the circumference for the triangle

Choice 2 to calculate the circumference for the square

Based on the user's selection the selected shape's circumference is calculated

Hand in: The Design in pseudocode

                  The output for both shapes

                  The Source codes (java program)

  

Note the output should look like :

Square:

               Side =

             Circumference =

Triangle:

               Side1 =  

Side2 =

Side 3 =

             Circumference =

Answer 1

Please up vote ,comment if any query . Be safe.

Psuedo Code :

print "1. Circumference of Triangle."
print "1. Circumference of Square."
print "Enter choice: "

input choice

if choice equals to 1

        input side 1,side 2,side 3

        calculate circumference

        print "Triangle :"

       print "side1="

       print "side2="

       print "side3="

      print "Circumference="

if choice equals to 2

      input side of square

       calculate circumference

     

print "Square:""

       print "side1="

      print "Circumference="

Program : ***************Main.java******************************

import java.util.Scanner;
public class Main {
    public static void main(String[] args) {
        Scanner sc=new Scanner(System.in);//scanner object
        System.out.println("1. Circumference of Triangle."); //print menu
        System.out.println("1. Circumference of Square.");
        System.out.print("Enter choice: "); //prompt for choice
        int choice=sc.nextInt(); //read choice

        if(choice==1)//if choice is 1
        { //get all sides
            System.out.print("Entet all three sides : ");
            double side1=sc.nextDouble();
            double side2=sc.nextDouble();
            double side3=sc.nextDouble();
            //print sides and circumference
            System.out.println("Triangle=");
            System.out.println("\tSide1="+side1);
            System.out.println("\tSide2="+side2);
            System.out.println("\tSide3="+side3);
            System.out.println("\tCircumference = "+(side1+side2+side3));
        }
        else if(choice==2)
        {
            //prompt for side
            System.out.print("Entet side : ");
            double side1=sc.nextDouble();
            //print circumference
            System.out.println("Square:");
            System.out.println("\tSide= "+side1);
            System.out.println("\tCircumference = "+(side1*4));
        }
        else//print if choice not 1 or 2
            System.out.println("Invalid Choice try again.");
    }
  
}

Output :

Please upvote ,comment if any query .