Swaping 2 variables using function

Question

how do i write a function that swaps two variables in java?

Answer 1

import java.awt.*;
public class test {
  String one;
  String two;
  public test() {
    one = "does this work?";
    two = "I really don't know, let's give it a whirl";
    System.out.println("one = " + one + "\n" +
                       "two = " + two);
    String[] didIt = swapThese(one, two);
    System.out.println("*******After calling swapThese():" + "\n" +
                       "one = " + one + "\n" +
                       "two = " + two + "\n" +
                       "didIt[0] = " + didIt[0] + "\n" +
                       "didIt[1] = " + didIt[1]);
    swapGlobalValues(one, two);
    System.out.println("*******After calling swapGlobalValues():" +
                       "\none = " + one + "\n" +
                       "two = " + two);
  private String[] swapThese(String string1, String string2) {
    String holder1 = string1;
    String holder2 = string2;
    string2 = string1;
    string1 = holder2;
    String[] valueOut = {string1, string2};
    return valueOut;
  private void swapGlobalValues(String string1, String string2) {
    one = string2;
    two = string1;
  public static void main(String[] args) {
    new test();
}