Divides the values in the two arrays of integers element-wise. - Java Collection Framework

Description

Divides the values in the two arrays of integers element-wise.

Demo Code

//package com.java2s;

public class Main {
    public static void main(String[] argv) throws Exception {
        int[] a = new int[] { 34, 35, 36, 37, 37, 37, 67, 68, 69 };
        int[] b = new int[] { 34, 35, 36, 37, 37, 37, 67, 68, 69 };
        System.out.println(java.util.Arrays
                .toString(divideElementwise(a, b)));
    }//from   w  w w.jav a  2  s.c o  m

    /**
     * Divides the values in the two arrays of integers element-wise.
     *
     * @param a Array of integer dividends.
     * @param b Array of integer divisors.
     * @return Result of element-wise division of arrays.
     * @throws ArithmeticException Throws exception when the arrays differ in
     * length.
     */
    public static double[] divideElementwise(int[] a, int[] b)
            throws ArithmeticException {

        if (a.length != b.length) {
            throw new ArithmeticException();
        } else {
            double[] result = new double[a.length];
            for (int i = 0; i < a.length; i++) {
                result[i] = (double) a[i] / b[i];
            }
            return result;
        }

    }

    /**
     * Divides the values in the two arrays of doubles element-wise.
     *
     * @param a Array of double dividends.
     * @param b Array of double divisors.
     * @return Result of element-wise division of arrays.
     * @throws ArithmeticException Throws exception when the arrays differ in
     * length.
     */
    public static double[] divideElementwise(double[] a, double[] b)
            throws ArithmeticException {

        if (a.length != b.length) {
            throw new ArithmeticException();
        } else {
            double[] result = new double[a.length];
            for (int i = 0; i < a.length; i++) {
                result[i] = a[i] / b[i];
            }
            return result;
        }

    }

    /**
     * Divides the values in the two arrays of longs element-wise.
     *
     * @param a Array of long dividends.
     * @param b Array of long divisors.
     * @return Result of element-wise division of arrays.
     * @throws ArithmeticException Throws exception when the arrays differ in
     * length.
     */
    public static double[] divideElementwise(long[] a, long[] b)
            throws ArithmeticException {

        if (a.length != b.length) {
            throw new ArithmeticException();
        } else {
            double[] result = new double[a.length];
            for (int i = 0; i < a.length; i++) {
                result[i] = (double) a[i] / b[i];
            }
            return result;
        }

    }

    /**
     * Divides the values in the two arrays of floats element-wise.
     *
     * @param a Array of float dividends.
     * @param b Array of float divisors.
     * @return Result of element-wise division of arrays.
     * @throws ArithmeticException Throws exception when the arrays differ in
     * length.
     */
    public static float[] divideElementwise(float[] a, float[] b)
            throws ArithmeticException {

        if (a.length != b.length) {
            throw new ArithmeticException();
        } else {
            float[] result = new float[a.length];
            for (int i = 0; i < a.length; i++) {
                result[i] = a[i] / b[i];
            }
            return result;
        }

    }

    /**
     * Divides the values in the two arrays of bytes element-wise.
     *
     * @param a Array of byte dividends.
     * @param b Array of byte divisors.
     * @return Result of element-wise division of arrays.
     * @throws ArithmeticException Throws exception when the arrays differ in
     * length.
     */
    public static float[] divideElementwise(byte[] a, byte[] b)
            throws ArithmeticException {

        if (a.length != b.length) {
            throw new ArithmeticException();
        } else {
            float[] result = new float[a.length];
            for (int i = 0; i < a.length; i++) {
                result[i] = (float) a[i] / b[i];
            }
            return result;
        }

    }

    /**
     * Divides the values in the two matrices element-wise.
     *
     * @param a Matrix of double dividends.
     * @param b Matrix of double divisors.
     * @return   Result of element-wise division of the two matrices.
     * @throws ArithmeticException   Throws an exception when the two matrices are
     * not of the same size.
     */
    public static double[][] divideElementwise(double[][] a, double[][] b)
            throws ArithmeticException {

        if (a.length != b.length || a[0].length != b[0].length) {
            throw new ArithmeticException();
        } else {
            double[][] result = new double[a.length][a[0].length];
            for (int i = 0; i < a.length; i++) {
                for (int j = 0; j < a[0].length; j++) {
                    result[i][j] = a[i][j] / b[i][j];
                }
            }
            return result;
        }

    }

    /**
     * Divides the values in the two matrices element-wise.
     *
     * @param a Matrix of integer dividends.
     * @param b Matrix of integer divisors.
     * @return   Result of element-wise division of the two matrices.
     * @throws ArithmeticException   Throws an exception when the two matrices are
     * not of the same size.
     */
    public static double[][] divideElementwise(int[][] a, int[][] b)
            throws ArithmeticException {

        if (a.length != b.length || a[0].length != b[0].length) {
            throw new ArithmeticException();
        } else {
            double[][] result = new double[a.length][a[0].length];
            for (int i = 0; i < a.length; i++) {
                for (int j = 0; j < a[0].length; j++) {
                    result[i][j] = (double) a[i][j] / b[i][j];
                }
            }
            return result;
        }

    }

    /**
     * Divides the values in the two matrices element-wise.
     *
     * @param a Matrix of float dividends.
     * @param b Matrix of float divisors.
     * @return   Result of element-wise division of the two matrices.
     * @throws ArithmeticException   Throws an exception when the two matrices are
     * not of the same size.
     */
    public static float[][] divideElementwise(float[][] a, float[][] b)
            throws ArithmeticException {

        if (a.length != b.length || a[0].length != b[0].length) {
            throw new ArithmeticException();
        } else {
            float[][] result = new float[a.length][a[0].length];
            for (int i = 0; i < a.length; i++) {
                for (int j = 0; j < a[0].length; j++) {
                    result[i][j] = a[i][j] / b[i][j];
                }
            }
            return result;
        }

    }

    /**
     * Divides the values in the two matrices element-wise.
     *
     * @param a Matrix of double dividends.
     * @param b Matrix of double divisors.
     * @return   Result of element-wise division of the two matrices.
     * @throws ArithmeticException   Throws an exception when the two matrices are
     * not of the same size.
     */
    public static double[][] divideElementwise(long[][] a, long[][] b)
            throws ArithmeticException {

        if (a.length != b.length || a[0].length != b[0].length) {
            throw new ArithmeticException();
        } else {
            double[][] result = new double[a.length][a[0].length];
            for (int i = 0; i < a.length; i++) {
                for (int j = 0; j < a[0].length; j++) {
                    result[i][j] = (double) a[i][j] / b[i][j];
                }
            }
            return result;
        }

    }

    /**
     * Divides the values in the two matrices element-wise.
     *
     * @param a Matrix of float dividends.
     * @param b Matrix of float divisors.
     * @return   Result of element-wise division of the two matrices.
     * @throws ArithmeticException   Throws an exception when the two matrices are
     * not of the same size.
     */
    public static float[][] divideElementwise(byte[][] a, byte[][] b)
            throws ArithmeticException {

        if (a.length != b.length || a[0].length != b[0].length) {
            throw new ArithmeticException();
        } else {
            float[][] result = new float[a.length][a[0].length];
            for (int i = 0; i < a.length; i++) {
                for (int j = 0; j < a[0].length; j++) {
                    result[i][j] = (float) a[i][j] / b[i][j];
                }
            }
            return result;
        }

    }

    /**
     * Divides the values in the two matrices element-wise.
     *
     * @param a Matrix of double dividends.
     * @param b Matrix of double divisors.
     * @return   Result of element-wise division of the two matrices.
     * @throws ArithmeticException   Throws an exception when the two matrices are
     * not of the same size.
     */
    public static double[][] divideElementwise(double[][] a, int[][] b)
            throws ArithmeticException {

        if (a.length != b.length || a[0].length != b[0].length) {
            throw new ArithmeticException();
        } else {
            double[][] result = new double[a.length][a[0].length];
            for (int i = 0; i < a.length; i++) {
                for (int j = 0; j < a[0].length; j++) {
                    result[i][j] = a[i][j] / b[i][j];
                }
            }
            return result;
        }

    }
}

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