Example usage for java.lang Math abs

Introduction

In this page you can find the example usage for java.lang Math abs.

Prototype

@HotSpotIntrinsicCandidate
public static double abs(double a)

Source Link

Document

Returns the absolute value of a double value.

Usage

From source file:Main.java

private static int getRawAmplitude(byte[] data, int len) {
    if (len <= 0 || data == null || data.length <= 0) {
        return 0;
    }//  w  ww .ja  v  a2 s . c  om

    int sum = 0;
    for (int i = 0; i < len; i++) {
        sum += Math.abs(data[i]);
    }
    return sum / len;
}

From source file:Main.java

/**
 * @param min/*from w w w  . j  av a 2  s  . co m*/
 * @param max
 * @return
 */
public static String getYZM(final int min, final int max) {
    Random random = new Random();
    int randomnum = 0;
    int tmp = Math.abs(random.nextInt());
    randomnum = tmp % (max - min + 1) + min;
    return randomnum + "";
}

From source file:Main.java

public static double[] Rec2Sph(double x, double y, double z) {
    double[] sph = new double[3];
    sph[0] = Math.sqrt(x * x + y * y + z * z);
    sph[1] = x == 0 ? 0 : Math.atan(Math.abs(y / x));
    if (x < 0)
        sph[1] = Math.PI - sph[1];
    if (y < 0)
        sph[1] *= -1;/*from  ww w.j  av a 2s.com*/
    sph[2] = Math.asin(z / sph[0]);
    return sph;
}

From source file:Main.java

public static boolean isHit(int left1, int top1, int w1, int h1, int left2, int top2, int w2, int h2) {
    int x1 = left1 + w1 / 2;
    int y1 = top1 + h1 / 2;
    int x2 = left2 + w2 / 2;
    int y2 = top2 + h2 / 2;
    if (Math.abs(x1 - x2) < (w1 / 2 + w2 / 2) - 10 && Math.abs(y1 - y2) < (h1 / 2 + h2 / 2) - 10) {
        return true;
    }//from   w  w w .  j a  v  a  2 s.  c  o  m
    return false;
}

From source file:Main.java

public static double getAcceleration(SensorEvent event) {
    final float x = event.values[0];
    final float y = event.values[1];
    final float z = event.values[2];
    double sqrt = Math.sqrt(Math.abs(x * x) + Math.abs(y * y) + Math.abs(z * z));
    return sqrt;//w w w.j a v a  2s.c  om
}

From source file:Main.java

public static boolean isAspectRatio4_3(int width, int height) {
    if (width < height) {
        int tmp = width;
        width = height;//from w  ww.  jav  a  2s .c o m
        height = tmp;
    }
    double ratio = (double) width / height;
    if (Math.abs(ratio - 4.0 / 3.0) < 0.02) {
        return true;
    }
    return false;
}

From source file:Main.java

/** Returns a random integer between 0 and n-1 */
public static int nextInt(int n) {
    Random rand = new Random(seed);
    return Math.abs(rand.nextInt()) % n;
}

From source file:Main.java

public static boolean isAspectRatio16_9(int width, int height) {
    if (width < height) {
        int tmp = width;
        width = height;/*from  w ww  .  j  av  a2s.c o m*/
        height = tmp;
    }
    double ratio = (double) width / height;
    if (Math.abs(ratio - 16.0 / 9.0) < 0.02) {
        return true;
    }
    return false;
}

From source file:Main.java

public static String declensionByNumber(int number, String[] words) {
    int wordIndex = 2;

    if (words.length != 3) {
        return null;
    }// www . java 2  s .  c  om

    int num = Math.abs(number) % 100;
    int numX = num % 10;

    if (num > 10 && num < 20) {
        wordIndex = 2;
    } else if (numX > 1 && numX < 5) {
        wordIndex = 1;
    } else if (numX == 1) {
        wordIndex = 0;
    }

    return words[wordIndex];
}

From source file:Main.java

public static List<Integer> toAbsIntegerList(final List<Integer> array) {
    final ArrayList<Integer> retValue = new ArrayList<Integer>();
    for (final Integer item : array)
        retValue.add(Math.abs(item));
    return retValue;
}