Introduction : IntMath is used to perform mathematical operations on Integer values. Basic standalone math functions are divided into the classes IntMath, LongMath, DoubleMath, and BigIntegerMath based on the primary numeric type involved. These classes have parallel structure, but each supports only the relevant subset of functions.
Declaration : The declaration for
com.google.common.math.IntMath class is :
@GwtCompatible(emulated = true)
public final class IntMath
extends Object
Below table shows some of the methods provided by IntMath Class of Guava :
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Exceptions :
- log2 : IllegalArgumentException if x <= 0
- log10 : IllegalArgumentException if x <= 0
- pow : IllegalArgumentException if k < 0
- sqrt : IllegalArgumentException if x < 0
- divide : ArithmeticException if q == 0, or if mode == UNNECESSARY and a is not an integer multiple of b
- mod : ArithmeticException if m <= 0
- gcd : IllegalArgumentException if a < 0 or b < 0
- checkedAdd : ArithmeticException if a + b overflows in signed int arithmetic
- checkedSubtract : ArithmeticException if a - b overflows in signed int arithmetic
- checkedMultiply : ArithmeticException if a * b overflows in signed int arithmetic
- checkedPow : ArithmeticException if b to the kth power overflows in signed int arithmetic
- factorial : IllegalArgumentException if n < 0
- binomial : IllegalArgumentException if n < 0, k n
Some other methods provided by IntMath Class of Guava are :
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Example 1 :
Output :
Error Message is : mode was UNNECESSARY, but rounding was necessary
Example 2 :
