title: Android: use a global object instead of creating new ones
body: <p>I have a class A in my Android app where I have some methods.
  Those methods are public and used in other classes (B, C, D, E, F ...).</p>
  
  <p>Is there a possibility to create only once the object from the class A and then use it in the other classes or i have to create new object in each classe.</p>
  
  <p>Actually I have to do in each classe (B, C, D, E, F ...)</p>
  
  <pre><code>A a = new A();
  a.xxxx;
  </code></pre>
  
  <p>It will be great if I can create only once the object a and then call it in my other classes.</p>
  
  <p>thank you.</p>