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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. 		// your code goes here
  13. 		int[][] arr = {{1,3},{1,2},{7,8},{8,10}};
  14. 		// for(int[] i : arr){
  15. 		// 	System.out.println(i[0] + " " + i[1]);
  16. 		// }
  17.  
  18. 		Arrays.sort(arr,(a,b)->{
  19. 			// if(a[0]<b[0])
  20. 			// 	return -1;
  21. 			// else if(a[0]>b[0])
  22. 			// 	return 1;
  23. 			// else{
  24. 			// 	if(a[1]<b[1])
  25. 			// 		return -1;
  26. 			// 	else if(a[1]>b[1])
  27. 			// 		return 1;
  28. 			// 	else 
  29. 			// 		return 0;
  30. 			// }
  31. 			if(Integer.compare(a[0],b[0]) == 0){
  32. 				return Integer.compare(a[1],b[1]);
  33. 			} else {
  34. 				return Integer.compare(a[0],b[0]);
  35. 			}
  36. 		});
  37.  
  38. 		for(int[] i : arr){
  39. 			System.out.println(i[0] + " " + i[1]);
  40. 		}
  41. 	}
  42. }
Success #stdin #stdout 0.13s 50240KB
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1 2
1 3
7 8
8 10
https://ideone.com/juZs0B
language:
Java (HotSpot 12)
created:
1 year ago
visibility:
public

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