java.lang · java.base · since Java 1.0

Math

declaration

public final class Math

Static numeric toolbox: min/max/abs, powers and roots, trigonometry, rounding, and the *Exact family that makes integer overflow throw instead of wrap.

Key methods

`static int/long/double max(a, b) / min(a, b) / abs(a)`	The everyday trio (abs(MIN_VALUE) still overflows — absExact throws).
`static double pow(double, double) / sqrt(double)`	Powers and roots.
`static long round(double)`	Half-up rounding to long.
`static double floor/ceil(double)`	Directional rounding, returns double.
`static int addExact/subtractExact/multiplyExact(int, int)`	Throw ArithmeticException on overflow.
`static int toIntExact(long)`	Checked narrowing.
`static int floorMod(int x, int y)`	Non-negative modulo for cyclic indexing.
`static double random()`	Uniform [0,1) — prefer ThreadLocalRandom for ranges.