This program uses a while loop and java switch statements to create a java math program that will execute the basic math problems (multiplication, subtraction, addition, division) for users to complete.
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Example Of How To Create A Java Math Program
//This will be a simple math program that does multiplication,
addition, subtraction, and division
After the comment, I would usually then import the functions that I would utilize within the
program. In this programming case, I will be utilizing the scanner and JOptionpane
function.
import java.util.Scanner;
import javax.swing.JOptionPane;
Next, I will create our public class with the name Simple
Math.
public class SimpleMath {
public
static void main(String[] args) {
while
(true) {
try
{
String
output = "";
String
input = JOptionPane.showInputDialog("Hello There Lets Do Some Math
\n" + "\n 1. Addition \n" +
"\n 2. Subtraction \n" + "\n 3. Division \n" + "\n 4.
Multiplication \n" + "\n 5. Exit");
int
in = Integer.parseInt(input);
Scanner
keyboard = new Scanner(System.in);
if
(in > 5) {
JOptionPane.showMessageDialog(null,
"Try Again Pick A Number Between 1 and 5");
}
if
(in <= 0) {
JOptionPane.showMessageDialog(null,
"Try Again Pick A Number Between 1 and 5");
}
switch
(in) {
// This code utilizes cases that depend upon which
selection the user selects the particular selected case would then be called into
action.
case
1:
System.out.println("Enter
two numbers to add");
double
num1 = keyboard.nextDouble();
double
num2 = keyboard.nextDouble();
output
+= "The answer is " + (num1 + num2);
JOptionPane.showMessageDialog(null,
output);
break;
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