Retrieving Variable data

[agnl666]

I was wondering how I would go about retrieving a value assigned to int (or any primitive data type) in one ... object I think (I wouldn't mind some clairifacation on that either) to another.

I'm writing a program to calculate error for my physics labs.

Here if is :

/*
* author : Dawson Reid
* date : Feb 9th, 2010
* problem : To clalculate error with in labs
*/

package ErrorCalculator;

import java.util.Scanner;

public class Main {

public static void main(String[] args) {

Scanner sc = new Scanner(System.in);

//Tittle
System.out.println("Welcome to the Error Calculator");

//Input type of error calculation required
System.out.println("Would you like to calculate : ");
System.out.println("1) avg error");
System.out.println("2) + or - error");
System.out.println("3) * or / error");
System.out.println("\nInput a number : ");

//Choice
int a = sc.nextInt();

}

/*
* Calculations to fallow
*/

public static void calc(String[] args) {

if (a == 1) {

}

}

}

In the "public static void calc" how would I make it recognize the value put into the "public static void main" for the value of a?

p.s - How do I place my code into the scroll box thingy others use?

[bobdark]

well, about the a's value, just make calc to get integer parameter and call calc with a.
for the second question, select your code and click on the '#' button in the message box

[agnl666]

Do you think you or someone else would be able to put up a short example of what you mean please.

[QuackWare]

You have to call the method "calc" and provide it with the a variable as a parameter to the method. I have bolded the portions of your code that I changed to make it clear for you.

* author : Dawson Reid
* date : Feb 9th, 2010
* problem : To calculate error with in labs
*/

package ErrorCalculator;

import java.util.Scanner;

public class Main {

public static void main(String[] args) {

Scanner sc = new Scanner(System.in);

//Tittle
System.out.println("Welcome to the Error Calculator");

//Input type of error calculation required
System.out.println("Would you like to calculate : ");
System.out.println("1) avg error");
System.out.println("2) + or - error");
System.out.println("3) * or / error");
System.out.println("\nInput a number : ");

//Choice
int a = sc.nextInt();


//You call the method "calc" here
calc(a);

}

/*
* Calculations to fallow
*/
//the (int a) portion of the method tells your program that this method always expects an int when called.
//You provide it with the int a you received from the user.
public static void calc(int a) {

//You can now use "a" in your code below.
if (a == 1) {

}

}

}

[agnl666]

Cool, thank you. Really helped.