Example usage for java.lang Math round

Introduction

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

Prototype

public static long round(double a)

Source Link

Document

Returns the closest long to the argument, with ties rounding to positive infinity.

Usage

From source file:Main.java

public static String roundOffToTwoDecimal(String valueStr) {
    double valueDouble = new Double(valueStr).doubleValue();
    double roundOff = (double) Math.round(valueDouble * 100) / 100;
    return new Double(roundOff).toString();
}

From source file:Main.java

/**
 * Get scale for image of size and max height/width
 * /*w  w w.j  a  v  a  2 s  . c om*/
 * @param size
 * @param width
 * @param height
 * @return scale
 */
public static int getScale(Point size, int width, int height) {
    if (size.x > width || size.y > height)
        return Math.max(Math.round((float) size.y / (float) height),
                Math.round((float) size.x / (float) width));
    else
        return 1;
}

From source file:Main.java

/**
 * Function to convert the given size in dp.
 * @param mContext context of the activity.
 * @param iValue value the needed to be changed.
 * @return value in dp/*from   w  ww  . j  av  a2s  .  c om*/
 */
public static int getSizeInDp(Context mContext, int iValue) {
    return Math.round(TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, iValue,
            mContext.getResources().getDisplayMetrics()));
}

From source file:Main.java

public static int px2dp(Context context, float pxValue) {
    final float scale = context.getResources().getDisplayMetrics().density;
    return Math.round(pxValue / scale);
}

From source file:Main.java

public static int dp2px(Context context, float dpValue) {
    final float scale = context.getResources().getDisplayMetrics().density;
    return Math.round(dpValue * scale);
}

From source file:Main.java

public static void multiply(final long[] pArray, final double pFactor) {
    for (int i = 0; i < pArray.length; i++) {
        pArray[i] = Math.round(pArray[i] * pFactor);
    }// w  ww .j a va  2  s.c  o m
}

From source file:Main.java

public static int caculateInSampleSize(Options options, int reqWidth, int reqHeight) {
    int width = options.outWidth;
    int height = options.outHeight;

    int inSampleSize = 1;

    if (width > reqWidth || height > reqHeight) {
        int widthRadio = Math.round(width * 1.0f / reqWidth);
        int heightRadio = Math.round(height * 1.0f / reqHeight);

        inSampleSize = Math.max(widthRadio, heightRadio);
    }// w w w.j  a  v a 2s. c om

    return inSampleSize;
}

From source file:Main.java

private static int calculateInSampleSize(BitmapFactory.Options options, int reqWidth, int reqHeight) {
    int width = options.outWidth;
    int height = options.outHeight;

    int inSampleSize = 1;
    if (width > reqWidth || height > reqHeight) {
        int widthRadio = Math.round(width * 1.0f / reqWidth);
        int heightRadio = Math.round(height * 1.0f / reqHeight);
        inSampleSize = Math.max(widthRadio, heightRadio);
    }/*from w  w  w  .j  a  v  a  2 s  .  com*/
    return inSampleSize;
}

From source file:Main.java

public static int dpToPixel(int dp) {
    return Math.round(dpToPixel((float) dp));
}

From source file:Main.java

private static int getIdealSizeFromResourceInDp(Context context, int resource) {
    float sizeInPx = context.getResources().getDimension(resource);
    float density = context.getResources().getDisplayMetrics().density;
    return Math.round(sizeInPx / density);
}