Groovy - Method

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Evaluation

The method will be chosen based on the types of the arguments at runtime. In Java, this is the opposite: methods are chosen at compile time, based on the declared types.

int method(String arg) {
    return 1;
}
int method(Object arg) {
    return 2;
}
Object o = "Object";
int result = method(o);

In Java, you would have:

assertEquals(2, result);

Whereas in Groovy:

assertEquals(1, result);