OnJava8-Examples/generics/TupleTest2.java
2016-07-22 14:45:35 -06:00

42 lines
1.1 KiB
Java

// generics/TupleTest2.java
// (c)2016 MindView LLC: see Copyright.txt
// We make no guarantees that this code is fit for any purpose.
// Visit http://mindviewinc.com/Books/OnJava/ for more book information.
import onjava.*;
import static onjava.Tuple.*;
public class TupleTest2 {
static Tuple2<String, Integer> f() {
return tuple("hi", 47);
}
static Tuple2 f2() { return tuple("hi", 47); }
static Tuple3<Amphibian, String, Integer> g() {
return tuple(new Amphibian(), "hi", 47);
}
static
Tuple4<Vehicle, Amphibian, String, Integer> h() {
return tuple(
new Vehicle(), new Amphibian(), "hi", 47);
}
static
Tuple5<Vehicle, Amphibian, String, Integer, Double> k() {
return tuple(new Vehicle(), new Amphibian(),
"hi", 47, 11.1);
}
public static void main(String[] args) {
Tuple2<String, Integer> ttsi = f();
System.out.println(ttsi);
System.out.println(f2());
System.out.println(g());
System.out.println(h());
System.out.println(k());
}
}
/* Output:
(hi, 47)
(hi, 47)
(Amphibian@a298b7, hi, 47)
(Vehicle@16d3586, Amphibian@154617c, hi, 47)
(Vehicle@17327b6, Amphibian@14ae5a5, hi, 47, 11.1)
*/