How Do I Call A Java Methods From One Class To Another Class In Android Development?

I have two classes which extend Activity and need to call another class method on main class on android development. I did something like subclass sub = new subclass(). It did not

Solution 1:

May i know why you would want to do so? If that method is so important to both of the classes, then create it inside a helper class (Which doesn't extend Activity) and create an object of it in both the classes, then with that object access that method.

Solution 2:

SubClass sub=new SubClass(); is creating an object of class SubClass.

It is not a method calling.

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If the method is defined in class SubClass then you can call it by using its object and dot operator.

sub.MethodName();

Solution 3:

Try just to label the required method as static. But remember that in that case the called method should not depends on any non-static member variables of methods of the class.