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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. import java.util.stream.Collectors;
  7. import java.util.stream.Stream;
  8.  
  9. /* Name of the class has to be "Main" only if the class is public. */
  10. class Test
  11. {
  12. 	public static void main (String[] args) throws java.lang.Exception
  13. 	{
  14. 		List<Test> tList =  new ArrayList<>();
  15. 		Test t = new Test(2,false);
  16. 		tList.add(t);
  17. 		t = new Test(2,true);
  18. 		tList.add(t);
  19. 		t = new Test(2,true);
  20. 		tList.add(t);
  21. 		t = new Test(2,false);
  22. 		tList.add(t);		
  23. 		t = new Test(3, true);
  24. 		t.setB(true);
  25.  
  26. 		tList.add(t);
  27. 		t = new Test(10, true);
  28. 		tList.add(t);
  29. 		t = new Test(10, false);
  30. 		tList.add(t);
  31. 		t = new Test(10, true);
  32. 		tList.add(t);
  33. 		t = new Test(10, false);
  34. 		tList.add(t);
  35. 		t = new Test(80, false);
  36. 		tList.add(t);
  37. 		System.out.println(tList);
  38.  
  39. 		Comparator<Test> comparator = Comparator.comparing(p -> p.getA());
  40.         comparator = comparator.thenComparing(p -> p.getB());
  41.  
  42. 		tList = tList.stream().sorted(comparator).collect(Collectors.toList());
  43.  
  44. 		System.out.println(tList);
  45. //		List<Test> trGrList = tList.stream().sorted((trgr1, trgr2) -> Boolean.compare(trgr2.getB(),
  46. //                    trgr1.getB()))
  47. //                .collect(Collectors.toList());
  48. //        System.out.println(trGrList);
  49.  
  50. //        System.out.println(t2.getClass().getName());
  51. //        System.out.println(t2.getClass().getName().equals("Test"));
  52.  
  53.  
  54.  
  55. 	}
  56.  
  57. 	private static class TransportGroupComparator implements Comparator<Test> {
  58.  
  59.         @Override
  60.         public int compare(Test trgr1, Test trgr2) {
  61.             int result = Boolean.compare(trgr2.getB(),
  62.                     trgr1.getB());
  63.                     System.out.println(result);
  64.             return result;
  65.         }
  66.     }
  67.  
  68.  
  69.  
  70.  
  71. 	private int a;
  72. 	private boolean b;
  73.  
  74. 	public Test(){}
  75.  
  76. 	public Test(int a, boolean b){
  77. 		super();
  78. 		this.a = a;
  79. 		this.b = b;
  80. 	}
  81.  
  82. 	public void setA(int a){
  83. 		this.a = a;
  84. 	}
  85.  
  86. 	public int getA(){
  87. 		return a;
  88. 	}
  89.  
  90. 	public void setB(boolean b){
  91. 		this.b = b;
  92. 	}
  93.  
  94. 	public boolean getB(){
  95. 		return b;
  96. 	}
  97.  
  98. 	@Override
  99. 	public String toString(){
  100. 		return this.getA() + "||" + this.getB();
  101. 	}
  102. }
Success #stdin #stdout 0.17s 47544KB
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stdin
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Standard input is empty
stdout
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[2||false, 2||true, 2||true, 2||false, 3||true, 10||true, 10||false, 10||true, 10||false, 80||false]
[2||false, 2||false, 2||true, 2||true, 3||true, 10||false, 10||false, 10||true, 10||true, 80||false]
https://ideone.com/Jond2P
Objeto embebido en otro.
language:
Java (HotSpot 12)
created:
1 year ago
visibility:
public

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