JavaLearning/guavaGoogle/src/main/java/org/example/math/MathGuava.java

package org.example.math;

import com.google.common.math.*;

import java.math.BigInteger;
import java.math.RoundingMode;

import static java.math.RoundingMode.CEILING;
import static java.math.RoundingMode.FLOOR;

public class MathGuava {
    public static void main(String[] args) {
        int logFloor = LongMath.log2(3, FLOOR);
        int mustNotOverflow = IntMath.checkedMultiply(121, 8746);
        long quotient = LongMath.divide(18, 3, RoundingMode.UNNECESSARY); // fail fast on non-multiple of 3
        BigInteger nearestInteger = DoubleMath.roundToBigInteger(348.33, RoundingMode.HALF_EVEN);
        BigInteger sideLength = BigIntegerMath.sqrt(new BigInteger(String.valueOf(144)), CEILING);

        System.out.println(logFloor);
        System.out.println(mustNotOverflow);
        System.out.println(quotient);
        System.out.println(nearestInteger);
        System.out.println(sideLength);
    }
}