title: java String variables not setting
body: <p>This is a much simplified version of a class file I'm working on, I've just used these classes to show my problem.</p>
  
  <pre><code>public class Test {
      private String string1 = null;
      private String string2 = null;
  
      private void setString(String s) {
          s = "hello";
      }
  
      private void set() {
          setString(string1);
          setString(string2);
      }
  
      public void print() {
          System.out.println(string1);
          System.out.println(string2);
      }
  
      public void initialise() {
          set();
          print();
      }  
  }
  
  public class StringTest {
      public static void main(String[] args) {
          Test test = new Test();
          test.initialise();
      }
  }
  </code></pre>
  
  <p>Anyway, basically, after this the two string variables are still null. What causes this problem? and how can I get around it? (Still learning the fundamentals of java - if that's relevant).</p>
  
  <p>Any help/guidance is greatly appreciated.</p>