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  1. import java.util.List;
  2. import java.util.ArrayList;
  3. import java.util.function.Supplier;
  4.  
  5. class SubListMadness {
  6.     public static void main(String[] args) {
  7.         printResult(() -> exampleList().subList(0,3));
  8.         printResult(() -> exampleList().subList(0,4));
  9.         printResult(() -> exampleList().subList(-1,4));
  10.         printResult(() -> exampleList().subList(-1,5));
  11.         printResult(() -> exampleList().subList(0,5));
  12.         printResult(() -> exampleList().subList(5,5));
  13.         printResult(() -> exampleList().subList(5,4));
  14.         printResult(() -> exampleList().subList(4,4)); //WTF?!
  15.     }
  16.  
  17.     private static List<String> exampleList() {
  18.         List<String> list = new ArrayList<>();
  19.         list.add("a");
  20.         list.add("b");
  21.         list.add("c");
  22.         list.add("d");
  23.         return list;
  24.     }
  25.  
  26.     private static <T> void printResult(Supplier<T> s) {
  27.         try {
  28.            System.out.println(s.get()); 
  29.         } catch (Exception e) {
  30.             System.out.println(e.getClass() + " " + e.getMessage());
  31.         }   
  32.     }   
  33. }
  34.  
Success #stdin #stdout 0.14s 2184192KB
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Standard input is empty
stdout
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[a, b, c]
[a, b, c, d]
class java.lang.IndexOutOfBoundsException fromIndex = -1
class java.lang.IndexOutOfBoundsException fromIndex = -1
class java.lang.IndexOutOfBoundsException toIndex = 5
class java.lang.IndexOutOfBoundsException toIndex = 5
class java.lang.IllegalArgumentException fromIndex(5) > toIndex(4)
[]
https://ideone.com/rbXMDd
language:
Java (HotSpot 12)
created:
5 years ago
visibility:
public

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