41 lines
1.1 KiB
Java
41 lines
1.1 KiB
Java
//: generics/TupleTest.java
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import net.mindview.util.*;
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class Amphibian {}
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class Vehicle {}
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public class TupleTest {
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static TwoTuple<String,Integer> f() {
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// Autoboxing converts the int to Integer:
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return new TwoTuple<>("hi", 47);
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}
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static ThreeTuple<Amphibian,String,Integer> g() {
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return new ThreeTuple<>(new Amphibian(), "hi", 47);
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}
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static
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FourTuple<Vehicle,Amphibian,String,Integer> h() {
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return
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new FourTuple<>(
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new Vehicle(), new Amphibian(), "hi", 47);
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}
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static
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FiveTuple<Vehicle,Amphibian,String,Integer,Double> k() {
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return new
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FiveTuple<>(
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new Vehicle(), new Amphibian(), "hi", 47, 11.1);
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}
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public static void main(String[] args) {
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TwoTuple<String,Integer> ttsi = f();
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System.out.println(ttsi);
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// ttsi.first = "there"; // Compile error: final
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System.out.println(g());
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System.out.println(h());
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System.out.println(k());
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}
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} /* Output: (80% match)
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(hi, 47)
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(Amphibian@1f6a7b9, hi, 47)
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(Vehicle@35ce36, Amphibian@757aef, hi, 47)
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(Vehicle@9cab16, Amphibian@1a46e30, hi, 47, 11.1)
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*///:~
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