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;
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
}
}
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");
}
}
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");
}
}
During our academic life we all have been exposed to many mathematical operations. Some in higher...
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I need to change the following code so that it results in the
sample output below but also imports and utilizes the code from the
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that's fine but there needs to be all 4 classes. I've included the
sample input and what I've done so far:
package lab03;
import java.util.ArrayList;
import java.util.Scanner;
import com.csc241.*;
public class Lab03 {
public...
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This is the contents of Lab11.java
import java.util.Scanner;
import java.io.*;
public class Lab11
{
public static void main(String args[]) throws IOException {
Scanner inFile = new Scanner(new File(args[0]));
Scanner keyboard = new Scanner(System.in);
TwoDArray array = new TwoDArray(inFile);
inFile.close();
int numRows = array.getNumRows();
int numCols = array.getNumCols();
int choice;
do {
System.out.println();
System.out.println("\t1. Find the number of rows in the 2D
array");
System.out.println("\t2. Find the number of columns in the 2D
array");
System.out.println("\t3. Find the sum of elements...
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Remember to name your Constants according to Java
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Declare a variable to store the input for the number of
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Declare two variables: one...
using Java program
please copy and paste the code don't screenshot it
import java.util.Scanner;
import java.io.File;
public class {
public static void main(String[] args) {
// Create a new Scanner object to obtain
// input from System.in
// --> TODO
// Ask user for a word to search for. Print
// out a prompt
// --> TODO
// Use the Scanner object you created above to
// take a word of input from the user.
// --> TODO
// ***...