buremba
10/31/2018, 11:41 AMpublic class Test {
interface Operator<T> {
String map(String col, T value);
}
static class TestOperator implements Operator<String> {
@Override
public String map(String col, String value) {
return "test";
}
}
public static void main(String[] args) {
Operator testImp = new TestOperator();
testImp.map("test", "test");
}
}
```