How to Increment a class Integer references value in java from another method

Question

package myintergertest;

/**
 *
 * @author Engineering
 */
public class Main {

    /**
     * @param args the command line arguments
     */
    public static void          


        

Answer 1

You can't. Java is strictly pass-by-value.

See http://javadude.com/articles/passbyvalue.htm

Your choices are to wrap the integer in an object (or array), pass that in and update, return a value, or make the integer a class/instance variable.

Which is better depends on the situation.