Java Utililty Methods Long Number Divide

List of utility methods to do Long Number Divide

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Description

The list of methods to do Long Number Divide are organized into topic(s).

Method

longdiv(long dividend, long divisor)
div 
if (dividend < 0) {
    return Math.round((double) (dividend - divisor + 1) / (double) divisor);
return Math.round((double) dividend / (double) divisor);
Stringdiv100(Long input)
div 
if (input == null || input == 0) {
    return "0.0";
Double fl = input / 100d;
DecimalFormat df = new DecimalFormat("#.##");
df.setRoundingMode(RoundingMode.FLOOR);
return df.format(fl);
longdiv_ceil(long n, long d)
Div_ceil. 
long v = (long) ((n / d) + (n % d != 0 ? 1 : 0));
return v;
longdivCeil(long a, long b)
div Ceil 
if (b < 0) {
    return divCeil(-a, -b);
} else if (a >= 0) {
    return ((a + b - 1) / b);
return a / b;
doubledivide(final long dividend, final long divisor)
divide 
if (divisor == 0)
    return 0;
return 1.0 * dividend / divisor;
Stringdivide(Long d1, Long d2)
divide 
if (d1 == null || d2 == null || d2.equals(0l)) {
    return "0";
double percent = (double) d1 / d2;
DecimalFormat format = new DecimalFormat("0.00");
return format.format(percent);
longdivide(long dividend, long divisor)
Returns dividend / divisor, where the dividend and divisor are treated as unsigned 64-bit quantities. 
if (divisor < 0) { 
    if (compareUnsigned(dividend, divisor) < 0) {
        return 0; 
    } else {
        return 1; 
if (dividend >= 0) {
...
doubledivide(long l1, long l2)
divide 
NumberFormat nf = DecimalFormat.getInstance(Locale.ENGLISH);
DecimalFormat df = (DecimalFormat) nf;
df.applyPattern("#.##########");
double percent = (double) l1 / (double) l2;
return Double.parseDouble(df.format(percent));
longdivideAndRoundUp(long x, long y)
divide And Round Up 
return (x + y - 1) / y;
longdivideForMean(long sum, long count)
Divides the sum by the count for an arithmetic mean. 
return (count == 0) ? -1 : sum / count;