I was thinking if there exists a better/nicer way to negate an instanceof
in Java.
Actually, I\'m doing something like:
if(!(str instanceof String))
If you can use static imports, and your moral code allows them
public class ObjectUtils {
private final Object obj;
private ObjectUtils(Object obj) {
this.obj = obj;
}
public static ObjectUtils thisObj(Object obj){
return new ObjectUtils(obj);
}
public boolean isNotA(Class> clazz){
return !clazz.isInstance(obj);
}
}
And then...
import static notinstanceof.ObjectUtils.*;
public class Main {
public static void main(String[] args) {
String a = "";
if (thisObj(a).isNotA(String.class)) {
System.out.println("It is not a String");
}
if (thisObj(a).isNotA(Integer.class)) {
System.out.println("It is not an Integer");
}
}
}
This is just a fluent interface exercise, I'd never use that in real life code!
Go for your classic way, it won't confuse anyone else reading your code!