33 lines
735 B
Java

// functional/Closure8.java
// (c)2021 MindView LLC: see Copyright.txt
// We make no guarantees that this code is fit for any purpose.
// Visit http://OnJava8.com for more book information.
import java.util.*;
import java.util.function.*;
public class Closure8 {
Supplier<List<Integer>> makeFun() {
final List<Integer> ai = new ArrayList<>();
ai.add(1);
return () -> ai;
}
public static void main(String[] args) {
Closure8 c7 = new Closure8();
List<Integer>
l1 = c7.makeFun().get(),
l2 = c7.makeFun().get();
System.out.println(l1);
System.out.println(l2);
l1.add(42);
l2.add(96);
System.out.println(l1);
System.out.println(l2);
}
}
/* Output:
[1]
[1]
[1, 42]
[1, 96]
*/