Java FAQ _09 Basic Class Library (003) _java.math Package What is the function

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1, Java.math package has what function

The Java.math package provides a mathematical class in Java. Includes basic floating-point libraries, complex operations, and arbitrary-precision data operations. Main classes such as:

?

The classes in math are described below:

  1. arbitrary length shaping
    BigInteger, the arbitrary length of the non-variable shaping. Because the base type has a limited length of shaping, Java provides arbitrary-length, arbitrarily-accurate shaping. Provides a method of operation. Inherit from number.
    Mutablebiginteger, variable BigInteger.
    Signedmutablebiginteger, signed variable BigInteger.

  2. arbitrary precision Values
    BigDecimal, immutable, arbitrary-precision signed values. Consists of an integer non-scale value of arbitrary precision and a 32-bit integer scale (scales). Provides a method of operation. Inherit from number.

  3. byte filtering
    Bitsieve, a simple filter for finding prime numbers.

  4. Context
    Mathcontext, mathematical operations context, describes some rules for numeric operators.
    Roundingmode, the enumeration of rounding algorithms.

Java FAQ _09 Basic Class Library (003) _java.math Package What is the function

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