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

public static int compareDateToDays(Date firstDate, Date lastDate) {
    if (firstDate == null || lastDate == null) {
        System.out.print("NULL");
    }/*w w  w .  jav  a 2  s .  c o m*/
    long time1 = firstDate.getTime();
    long time2 = lastDate.getTime();
    long tmpCal = time2 - time1;
    long mm = 24 * 60 * 60 * 1000;
    int days = (int) (tmpCal / mm);
    return Math.abs(days);
}

From source file:Main.java

public static boolean isTouchFlick(float baseDistance, float[] startPoints, float[] endPoint) {

    float xDistance = endPoint[0] - startPoints[0];
    float yDistance = endPoint[1] - startPoints[1];

    if (Math.abs(xDistance) < baseDistance && Math.abs(yDistance) < baseDistance) {
        return false;
    }/*  w w  w . j a va  2  s  . co m*/
    return true;
}

From source file:Main.java

/**
 * This method checks if the given value is within the deadband range.
 * If so, it returns 0.0 else it returns the unchanged value.
 *
 * @param value specifies the value to be chacked.
 * @param deadband specifies the deadband zone.
 * @return the value 0.0 if within deadband, unaltered otherwise.
 *//*from  w w w.  j av  a  2s  . c om*/
public static double applyDeadband(double value, double deadband) {
    return Math.abs(value) >= deadband ? value : 0.0;
}

From source file:Main.java

public static int roundOrientation(int orientation, int orientationHistory) {
    boolean changeOrientation = false;
    if (orientationHistory == OrientationEventListener.ORIENTATION_UNKNOWN) {
        changeOrientation = true;//from  ww w  .  ja v  a2  s.com
    } else {
        int dist = Math.abs(orientation - orientationHistory);
        dist = Math.min(dist, 360 - dist);
        changeOrientation = (dist >= 45 + ORIENTATION_HYSTERESIS);
    }
    if (changeOrientation) {
        return ((orientation + 45) / 90 * 90) % 360;
    }
    return orientationHistory;
}

From source file:Main.java

private static void printPassword() {
    String UPPER = "ABCDEFGHIJKLMNPQRSTUVWXYZ";
    String LOWER = "abcdefghijklmnpqrstuvwxyz";
    String NUMBER = "123456789";
    String SPECIAL = "!@#$%&*+?";
    Random randGen = new Random();

    StringBuffer buf = new StringBuffer();
    buf.append(LOWER.charAt(Math.abs(randGen.nextInt()) % LOWER.length()));
    buf.append(LOWER.charAt(Math.abs(randGen.nextInt()) % LOWER.length()));
    buf.append(NUMBER.charAt(Math.abs(randGen.nextInt()) % NUMBER.length()));
    for (int i = 0; i <= 4; i++) {
        buf.append(LOWER.charAt(Math.abs(randGen.nextInt()) % LOWER.length()));
    }// w w  w . ja va  2s . c o m
    buf.append(UPPER.charAt(Math.abs(randGen.nextInt()) % UPPER.length()));
    buf.append(LOWER.charAt(Math.abs(randGen.nextInt()) % LOWER.length()));
    System.out.println(buf.toString());
}

From source file:Main.java

public static double absSum(double[] input) {
    double sum = 0;
    for (int i = 0; i < input.length; i++) {
        sum += Math.abs(input[i]);
    }//from  w  w w . j  av a2 s.c  om
    return sum;
}

From source file:Main.java

static int daysBetween(Calendar day1, Calendar day2) {
    /**/*from  w  w  w.j a  va  2 s.  c o m*/
     * Saved some effort using the solution described here,
     * http://stackoverflow.com/a/28865648/1587370
     */
    Calendar dayOne = (Calendar) day1.clone(), dayTwo = (Calendar) day2.clone();

    if (dayOne.get(Calendar.YEAR) == dayTwo.get(Calendar.YEAR)) {
        return Math.abs(dayOne.get(Calendar.DAY_OF_YEAR) - dayTwo.get(Calendar.DAY_OF_YEAR));
    } else {
        if (dayTwo.get(Calendar.YEAR) > dayOne.get(Calendar.YEAR)) {
            //swap them
            Calendar temp = dayOne;
            dayOne = dayTwo;
            dayTwo = temp;
        }
        int extraDays = 0;

        int dayOneOriginalYearDays = dayOne.get(Calendar.DAY_OF_YEAR);

        while (dayOne.get(Calendar.YEAR) > dayTwo.get(Calendar.YEAR)) {
            dayOne.add(Calendar.YEAR, -1);
            // getActualMaximum() important for leap years
            extraDays += dayOne.getActualMaximum(Calendar.DAY_OF_YEAR);
        }

        return extraDays - dayTwo.get(Calendar.DAY_OF_YEAR) + dayOneOriginalYearDays;
    }
}

From source file:Main.java

public static long compareMin(Date before, Date after) {
    if (before == null || after == null) {
        return 0l;
    }/*  ww w .j  av  a 2s.  com*/
    long dif = 0;
    if (after.getTime() >= before.getTime()) {
        dif = after.getTime() - before.getTime();
    } else if (after.getTime() < before.getTime()) {
        dif = after.getTime() + 86400000 - before.getTime();
    }
    dif = Math.abs(dif);
    return dif / 60000;
}

From source file:Main.java

public static Camera.Size getOptimalPreviewSizeByAspectRatio(List<Camera.Size> sizes, double aspectRatio) {
    if (sizes == null)
        return null;
    Camera.Size optimalSize = null;/*from w  ww.  ja v a  2 s .  c om*/

    // Find size
    for (Camera.Size size : sizes) {
        double ratio = (double) size.width / size.height;
        if (Math.abs(ratio - aspectRatio) > ASPECT_TOLERANCE) {
            continue;
        }
        if ((optimalSize == null) || (optimalSize.height < size.height)) {
            optimalSize = size;
        }
    }

    return optimalSize;
}

From source file:Main.java

/**
 * Tests whether the two decimal numbers are equal with a tolerance of 0.01.
 * If one or both of the numbers are null, false is returned.
 *
 * @param d1 the first value./*from  ww w  . j  av  a  2  s . c o  m*/
 * @param d2 the second value.
 * @return true if the two decimal numbers are equal with a tolerance of 0.01.
 */
public static boolean isEqual(Double d1, Double d2) {
    if (d1 == null || d2 == null) {
        return false;
    }

    return Math.abs(d1 - d2) < TOLERANCE;
}