This utility function returns a copy of the specific column of a passed 2D double array as a one dimensional double array. - Java Collection Framework

Java examples for Collection Framework:Array Copy

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Description

This utility function returns a copy of the specific column of a passed 2D double array as a one dimensional double array.

Demo Code


//package com.java2s;

public class Main {
    /**// w  ww .  ja  va  2 s  . c o m
     * This utility function returns a copy of the specific column of a passed
     * 2D double array as a one dimensional double array.
     * 
     * @param twoDfloatArray
     *            a 2D double array whose column is supposed to be fetched and
     *            return
     * @param colNb
     *            the number of column whose values are supposed to be returned
     *            as array
     * @return an array (double) containing a copy of the passed column number
     *         and 2D array
     */
    public static double[] colCopy(double[][] twoDdoubleArray, int colNb) {
        double[] aCol = new double[twoDdoubleArray.length];
        for (int i = 0; i < twoDdoubleArray.length; i++) {
            aCol[i] = twoDdoubleArray[i][colNb];
        }
        return aCol;
    }
}

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