Get multiple elements at a column by get() method

[void]

Hello,

I am confusing why the following simple code makes strange results and
even an error. See the following codes and outputs.

[Code]
float[][] X_data = new float[][]{{1, 2, 3, 4, 5}, {6, 7, 8, 9, 10},
{11, 12, 13, 14, 15}};
FloatMatrix X = new FloatMatrix(X_data);

int[] rows = new int[]{0, 1, 2};
int[] cols = new int[]{0, 1, 2, 3, 4};

System.out.println("matrix test");
System.out.println("------------------------------------------");
System.out.println(X.get(rows, cols));

System.out.println("------------------------------------------");
System.out.println(X.get(0, cols));
System.out.println(X.get(1, cols));
System.out.println(X.get(2, cols));

System.out.println("------------------------------------------");
System.out.println(X.get(rows, 4));
System.out.println(X.get(rows, 3));
System.out.println(X.get(rows, 2));
System.out.println(X.get(rows, 1));
System.out.println(X.get(rows, 0));

[Output]
matrix test
------------------------------------------
[1.0, 2.0, 3.0, 4.0, 5.0; 6.0, 7.0, 8.0, 9.0, 10.0; 11.0, 12.0, 13.0,
14.0, 15.0]
------------------------------------------
[1.0, 2.0, 3.0, 4.0, 5.0]
[6.0, 7.0, 8.0, 9.0, 10.0]
[11.0, 12.0, 13.0, 14.0, 15.0]
------------------------------------------
[5.0, 0.0, 0.0, 0.0; 10.0, 0.0, 0.0, 0.0; 15.0, 0.0, 0.0, 0.0]
[4.0, 0.0, 0.0; 9.0, 0.0, 0.0; 14.0, 0.0, 0.0]
[3.0, 0.0; 8.0, 0.0; 13.0, 0.0]
[2.0; 7.0; 12.0]
Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 0
at org.jblas.FloatMatrix.put(FloatMatrix.java:1220)
at org.jblas.FloatMatrix.get(FloatMatrix.java:623)
at learningEngine.NodeData.main(NodeData.java:72)



-void