Question

During our academic life we all have been exposed to many mathematical operations. Some in higher degree than others, but every one of us can at least recall some computation they need to do in their daily lives. For example, calculating the average of your grades; or the area of your backyard; or how long will it take you to get home if you are traveling at 50 miles per hour. All these computations can be expressed in Java code. This is your task for this discussion: Please come up with a formula you like (“is there such thing?”) and write a small piece of code to calculate it. You must decide what type of variables you need, what are their values, and you need to express the formula using assignments in correct Java syntax. Use the compiler to verify that your program works. Let me give you an example: To calculate the average of two grades I could do the following inside the main method in a class: Scanner stdIn = new Scanner(System.in) ; double grade1; double grade2; double average; System.out.println(“Give me the first grade:”); grade1 = stdIn.nextDouble(); System.out.println(“Give me the second grade:”); grade2 = stdIn.nextDouble(); average = (grade1+grade2)/2.0;

Answer 1

1) Average of grades

import java.util.Scanner;
import java.text.DecimalFormat;
public class area {
   public static void main(String args[])
   {
       double grade1,grade2,average;
       Scanner stdIn = new Scanner(System.in);
       System.out.println("Give me first grade");//asks user to enter first grade
       grade1 = stdIn.nextDouble();
       System.out.println("Give me second grade");//asks user to enter second grade
       grade2 = stdIn.nextDouble();
       average = (grade1+grade2)/2.0;
       System.out.println("Average of "+grade1 + "&"+ grade2 +" is "+average);//prints average of grade1 and grade2
   }
}

1import java.util.Scanner; 3 public class area { public static void main(String args[]) 40 double grade1, grade2, average; Scanner stdIn = new Scanner(System.in); System.out.println("Give me first grade");//asks user to enter first grade grade1 = stdIn.nextDouble(); System.out.println("Give me second grade");//asks user to enter second grade grade2 = stdIn.nextDouble(); average = (grade1+grade2)/2.0; System.out.println("Average of "+grade1 + "&"+ grade2 +" is "+average);//prints average of grade1 and grade2 15 }

<terminated > area Java Application) C:\Program File Give me first grade 1.5 Give me second grade 3.5 Average of 1.583.5 is 2.5

2)Area of backyard

import java.util.Scanner;
import java.text.DecimalFormat;
public class area {
   public static void main(String args[])
   {
       int width , breadth,area;
       Scanner stdIn = new Scanner(System.in);
       System.out.println("Enter width of backyard");
       width = stdIn.nextInt();
       System.out.println("Enter breadth of backyard");
       breadth = stdIn.nextInt();
       area = width * breadth;
       System.out.println("Area of the backyard is "+ area + "sqmeters");
      
              
   }
}

1. import java.util.Scanner; 3 public class area { public static void main(String args[]). int width , breadth, area; Scanner stdIn = new Scanner(System.in); System.out.println("Enter width of backyard"); width = stdin.nextInt(); System.out.println("Enter breadth of backyard"); breadth = stdin.nextInt(); area = width * breadth; System.out.println("Area of the backyard is "+ area + "sqmeters");

<terminated > area [Java Application] C:\Program FilesVava\jre 1.8.0_191 Enter width of backyard 10 Enter breadth of backyard 10 Area of the backyard is 100 sqmeters

3)Time to reach home

import java.util.Scanner;
import java.text.DecimalFormat;
public class area {
   public static void main(String args[])
   {
       int milesperhour = 50, distance;
       double time;
       Scanner stdIn = new Scanner(System.in);
       System.out.println("Enter distance of your home from starting point in miles");
       distance = stdIn.nextInt();
       time = distance / milesperhour;
       System.out.println("TIme taken to reach home is "+ time + " hours");      
   }
}

U month.java u Student.java Pl hacker Pl comp X.classpat Ptact Dl concat P 35 P large l reverse Pl koti Pikk 21import java.util.Scanner; 3 public class area { public static void main(String args[]) int milesperhour = 50, distance; double time; Scanner stdIn = new Scanner(System.in); System.out.println("Enter distance of your home from starting point in miles"); distance = stdin.nextInt(); time = distance / milesperhour; System.out.println("Time taken to reach home is "+ time + "hours"); Console X Ru PyUnit <terminated > area [Java Application] C:\Program Files\ava\jre 1.8.0_191\bin\javaw.exe (02-Sep-2019, 10:13:18 PM) Enter distance of your home from starting point in miles 100 TIme taken to reach home is 2.0 hours