Get value of String variable via reflection

Question

I have a POJO with loads of Strings and I want an easy method to check if they are all empty / contain a certain character / whatever.

I get the String variables with this:

    Field[] fields = this.getClass().getDeclaredFields();

    for (Field f : fields) {

        if (f.getType() == java.lang.String.class) {
            Log.d("REF", "Field: " + f.getName());
        }

    }

but I don't know how to get the String value of the Field. How is it done?

Answer 1

You need to call:

Object val = f.get(this); 

OR to get String object:

String strval = (String) f.get(this); 

to get field represented by f's value.

See: Field#Get(Object)

Also: Getting and Setting Field Values