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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. 		System.out.println(Arrays.deepToString(get2DSubArray(new double[][] {
  13. 			{1,2,3},
  14. 			{4,5,6},
  15. 			{7,8,9}
  16. 		}, 1,2,1,2)));
  17. 	}
  18.  
  19. 	public static double[][] get2DSubArray(double[][] largeArray, int rowStartIndex, int rowEndIndex, int columnStartIndex, int columnEndIndex) {
  20. 	    double[][] subArray = new double[rowEndIndex-rowStartIndex+1][columnEndIndex-columnStartIndex+1];
  21. 	    for (int row = rowStartIndex; row < rowEndIndex; row++) {
  22. 	        subArray[row] = Arrays.copyOfRange(largeArray[row], columnStartIndex, columnEndIndex);
  23. 	    }
  24. 	    return subArray;
  25. 	}
  26. }
Success #stdin #stdout 0.04s 4386816KB
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Standard input is empty
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[[0.0, 0.0], [5.0]]
https://ideone.com/P9qn4N
language:
Java (HotSpot 12)
created:
7 years ago
visibility:
public

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