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  1. import java.util.stream.Stream;
  2. import java.util.Objects;
  3. import java.util.List;
  4.  
  5. class Ideone {
  6. 	public static void main (String[] args) {
  7. 		System.out.println(
  8. 			isAnyFooNullOrDoesAnyGetBarReturnNull(new Foo[]{
  9. 				new Foo(new Bar()),
  10. 				new Foo(new Bar())
  11. 			}));
  12. 		System.out.println(
  13. 			isAnyFooNullOrDoesAnyGetBarReturnNull(new Foo[]{
  14. 				new Foo(null),
  15. 				new Foo(new Bar())
  16. 			}));
  17. 		System.out.println(
  18. 			isAnyFooNullOrDoesAnyGetBarReturnNull(new Foo[]{
  19. 				null,
  20. 				new Foo(new Bar())
  21. 			}));
  22. 	}
  23.  
  24. 	public static boolean isAnyFooNullOrDoesAnyGetBarReturnNull(Foo... foos) {
  25. 		return Stream.of(foos)
  26. 				.map(foo -> Objects.isNull(foo) || Objects.isNull(foo.getBar()))
  27. 				.reduce(false, Boolean::logicalOr);
  28. 	}
  29. }
  30.  
  31. class Foo {
  32. 	private final Bar bar;
  33.  
  34. 	public Foo(final Bar bar) {
  35. 		this.bar = bar;
  36. 	}
  37.  
  38. 	public final Bar getBar() {
  39. 		return bar;
  40. 	}
  41. }
  42.  
  43. class Bar {}
Success #stdin #stdout 0.08s 34092KB
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stdin
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Standard input is empty
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false
true
true
https://ideone.com/CSoMai
language:
Java (HotSpot 12)
created:
5 years ago
visibility:
public

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