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  1. /* package whatever; // don't place package name! */
  2.  
  3. import java.util.*;
  4. import java.lang.*;
  5. import java.io.*;
  6.  
  7. /* Name of the class has to be "Main" only if the class is public. */
  8. class Ideone
  9. {
  10. 	public static void main (String[] args) throws java.lang.Exception
  11. 	{
  12. 	Test[] testArray = new Test[] { 
  13. 				new Test(1385105640000L),
  14. 				new Test(1376712950000L),
  15. 				new Test(1385191974000L),
  16. 				new Test(1385172503000L) };
  17.  
  18. 		List<Test> testList = new ArrayList<Test>(Arrays.asList(testArray));
  19.  
  20. 		Collections.sort(testList, testDesc);
  21.  
  22. 		for (Test t: testList)
  23. 			System.out.println(t.toString());
  24.  
  25.  
  26. 		/* Resolução Correta:
  27. 		 * Test [time=1385191974000L]
  28. 		 * Test [time=1385172503000L]
  29. 		 * Test [time=1385105640000L]
  30. 		 * Test [time=1376712950000L]
  31. 		 */
  32.  
  33. 	}
  34.  
  35. 	private static class Test {
  36. 		long time;
  37.  
  38. 		public Test(long time) {
  39. 			super();
  40. 			this.time = time;
  41. 		}
  42.  
  43. 		@Override
  44. 		public String toString() {
  45. 			return "Test [time=" + time + "]";
  46. 		}
  47. 	}
  48.  
  49. 	// Ordena em ordem decrescente
  50. 	private static Comparator<Test> testDesc = new Comparator<Test>() {
  51.         @Override
  52.         public int compare(Test t1, Test t2) {
  53.             return (int) (t2.time - t1.time);
  54.         }
  55.     };
  56. }
Success #stdin #stdout 0.07s 380160KB
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stdin
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Standard input is empty
stdout
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Test [time=1376712950000]
Test [time=1385191974000]
Test [time=1385172503000]
Test [time=1385105640000]
https://ideone.com/yWkvLP
language:
Java (HotSpot 12)
created:
10 years ago
visibility:
public

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