title: define interface method with different parameters in C#
body: <pre><code>interface parentInterface
  {
     public String methodA(/*define parameters name and dataType*/);
  }
  </code></pre>
  
  <p>and</p>
  
  <pre><code>public class childA : parentInterface
  {
    public String methodA(String a, int b, String c, long d){}
  }
  
  public class childB : parentInterface
  {
     public String methodA(int e, String f, String g){}
  }
  </code></pre>
  
  <p>I want to define interface method's parameters name and data type </p>