title: Simple method isn't working as expected
body: <p>I'm just beginning to learn java and I'm figuring out method calls. I wrote the code below, so the method 'calling' uses the method 'called' to add 1 to 'number', but it doesn't seem to be executing properly. here's the code:</p>
  
  <pre><code>private void calling(){
  
      int number1 = 4; 
  
      int number2 = 2; 
  
      called(number1);
  
      System.out.println("number1 = " + number1);
      System.out.println("number2 = " + number2);
  }
  
  private void called(int number1){ 
  
      number1++;
  
  }
  </code></pre>
  
  <p>and then the output I want is 'number1 = 5' &amp; 'number2 = 2', but instead i'm getting this: </p>
  
  <pre><code>    number1 = 4 
      number2 = 2
  </code></pre>
  
  <p>is there something I'm missing? thanks in advance!</p>