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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.ArrayList;
  7. import java.util.Comparator;
  8. import java.util.List;
  9. import java.util.stream.Collectors;
  10.  
  11. /* Name of the class has to be "Main" only if the class is public. */
  12. class Ideone
  13. {
  14. 	public static void main (String[] args) throws java.lang.Exception
  15. 	{
  16. 		List<List<String>> data = new ArrayList<>();
  17.         List<String> list1 = new ArrayList<>();
  18.         List<String> list2 = new ArrayList<>();
  19.         List<String> list3 = new ArrayList<>();
  20.  
  21.         list1.add("Siva");
  22.         list1.add("20");
  23.         list1.add("Hyd");
  24.         list1.add("TA");
  25.         list1.add("India");
  26.  
  27.         list2.add("Suresh");
  28.         list2.add("22");
  29.         list2.add("Banglore");
  30.         list2.add("KA");
  31.         list2.add("India");
  32.  
  33.         list3.add("Ramesh");
  34.         list3.add("24");
  35.         list3.add("Chennai");
  36.         list3.add("TN");
  37.         list3.add("India");
  38.  
  39.         data.add(list1);
  40.         data.add(list2);
  41.         data.add(list3);
  42.  
  43.         List<List<String>> listSorted1 = data.stream()
  44.                 .sorted((x, y) -> {
  45.                     int res = x.get(0).compareTo(y.get(0));
  46.                     if (res != 0) return res;
  47.                     res = Integer.valueOf(x.get(1)).compareTo(Integer.valueOf(y.get(1)));
  48.                     if (res != 0) return res;
  49.                     return x.get(2).compareTo(y.get(2));
  50.                 })
  51.                 .collect(Collectors.toList());
  52.  
  53.         System.out.println("Sorting without mapping: \n" + listSorted1);
  54. 	}
  55. }
Success #stdin #stdout 0.14s 51084KB
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Standard input is empty
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Sorting without mapping: 
[[Ramesh, 24, Chennai, TN, India], [Siva, 20, Hyd, TA, India], [Suresh, 22, Banglore, KA, India]]
https://ideone.com/RhW1VI
language:
Java (HotSpot 12)
created:
3 years ago
visibility:
public

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