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 double roundFraction(Double value, int precision) {
    int scale = (int) Math.pow(10, precision);
    return (double) Math.round(value * scale) / scale;
}

From source file:Main.java

public static int convertDpToPixel(Context context, int dp) {
    float density = context.getResources().getDisplayMetrics().density;
    return Math.round((float) dp * density);
}

From source file:Main.java

public static String fileSizeFormat(long size) {
    float mbSize = size / 1000f / 1000f;
    if (mbSize < 1000f) {
        return String.format("%d MB ", Math.round(mbSize));
    } else {//from w  w  w  . j a va 2 s. com
        float gSize = mbSize / 1000f;
        if (gSize < 1000f) {
            return String.format("%d G ", Math.round(gSize));
        } else {
            float TSize = gSize / 1000f;
            return String.format("%d T ", Math.round(TSize));
        }

    }
}

From source file:Main.java

/**
 * //from w  w w.j  a  v a2s.  c  om
 * @param variation
 * @return
 */
public static String makeVariation(double variation) {
    int var = (int) Math.round(variation);
    String ret = String.format(Locale.getDefault(), "%02d", var);
    if (var < 0) {
        ret = "E" + var + "\u00B0 ";
    } else {
        ret = "W" + var + "\u00B0 ";
    }
    return ret;
}

From source file:Main.java

public static int formatPix(Context context, float pixValue) {
    int width = 640;

    return (int) Math.round(getScreenWidth(context) * 1.0 / width * pixValue);
}

From source file:Main.java

public static int formatPix(Context context, float pixValue) {
    int width = 720;

    return (int) Math.round(getScreenWidth(context) * 1.0 / width * pixValue);
}

From source file:Main.java

public static int cmToDpi(float size, DisplayMetrics metrics) {
    float totalDIP = metrics.densityDpi;
    float inches = size / 25.4f;
    return Math.round(inches * totalDIP);
}

From source file:Main.java

public static int calcPercent(final int value, final int percent) {
    final float p = (float) percent;
    final float p100 = p / 100;
    return Math.round(value * p100);
}

From source file:Main.java

public static int adjustAlpha(int color, @SuppressWarnings("SameParameterValue") float factor) {
    int alpha = Math.round(Color.alpha(color) * factor);
    int red = Color.red(color);
    int green = Color.green(color);
    int blue = Color.blue(color);
    return Color.argb(alpha, red, green, blue);
}

From source file:Main.java

public static int totalGrade(float totalMiles, float penaltyPoint) {

    float safetyPoint = totalMiles + penaltyPoint;
    float totalGrade = (safetyPoint / totalMiles) * 100;
    return Math.round(totalGrade);

}