the9noob
Advanced Cheater
 Reputation: 0
Joined: 02 Feb 2007
Posts: 59
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 Posted: Thu Sep 13, 2007 10:11 pm Post subject: Java Calculator |
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Here's some coding I did in Java Pro, just need to make them into executables. 
| Code: |
// Addition.java
//Addition program that displays the sum of two numbers
//Java Packages
import javax.swing.JOptionPane;
public class Addition {
//main method begins execution of Java application
public static void main (String args[])
{
String firstNumber; //first string entered by user
String secondNumber; //second string entered by user
int number1; //first number to add
int number2; //second number to add
int sum; //sum of number1 and number2
//read in first number from user as a String
firstNumber = JOptionPane.showInputDialog("Enter first
integer");
//read in second number from user as a String
secondNumber = JOptionPane.showInputDialog("Enter second
integer");
//convert numbers from String to type int
number1 = Integer.parseInt(firstNumber);
number2 = Integer.parseInt(secondNumber);
//add numbers
sum = number1 + number2;
//display result
JOptionPane.showMessageDialog( null, "The sum is" + sum,
"Results", JOptionPane.PLAIN_MESSAGE);
System.exit(0); //terminate application with window
}
}
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And...
| Code: |
// Math.java
//Math Program that displays the output (mult., div., add, sub) of two numbers.
//Java Packages
import javax.swing.JOptionPane;
public class Math {
//main method begins execution of Java application
public static void main (String args[])
{
String firstNumber; //first string entered by user
String secondNumber; //second string entered by user
int number1; //first number to add
int number2; //second number to add
int sum; //sum of number1 and number2
int difference; //difference of number1 and number2
int product; //product of number1 and number 2
int quotient; //quotient of number1 and number2
//read in first number from user as a String
firstNumber = JOptionPane.showInputDialog("Enter first
integer");
//read in second number from user as a String
secondNumber = JOptionPane.showInputDialog("Enter second
integer");
//convert numbers from String to type int
number1 = Integer.parseInt(firstNumber);
number2 = Integer.parseInt(secondNumber);
//add numbers
sum = number1 + number2;
//subtract numbers
difference = number2 - number1;
//mutilply numbers
product = number1 * number2;
//divide numbers
quotient = number1 / number2;
//display result
System.out.println("The sum is " + sum);
System.out.println("The difference is " + difference);
System.out.println("The product is " + product);
System.out.println("The quotient is " + quotient);
System.exit(0); //terminate application with window
}
}
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I'm new to Java, but this seems useful in some cases.
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