Is there anything wrong with a class with all static methods?

Question

I\'m doing code review and came across a class that uses all static methods. The entrance method takes several arguments and then starts calling the other static methods passin

Answer 1

I'm not quite sure what you meant by entrance method but if you're talking about something like this:

 MyMethod myMethod = new MyMethod();
 myMethod.doSomething(1);

 public class MyMethod {
      public String doSomething(int a) {
          String p1 = MyMethod.functionA(a);
          String p2 = MyMethod.functionB(p1);
          return p1 + P2;
      }
      public static String functionA(...) {...}
      public static String functionB(...) {...}
 }

That's not advisable.

I think using all static methods/singletons a good way to code your business logic when you don't have to persist anything in the class. I tend to use it over singletons but that's simply a preference.

 MyClass.myStaticMethod(....);

as opposed to:

 MyClass.getInstance().mySingletonMethod(...);

All static methods/singletons tend to use less memory as well but depending on how many users you have you may not even notice it.