It is true that you may utilise the bigInteger and BigDecimal classes in the java.math package if you need to work with really huge integers or highly precise floating-point numbers.
arbitrary-precision integers that are immutable. All operations function as if BigIntegers were written in two's complement notation, much like the basic integer types in Java. BigInteger offers equivalents for all of Java's primitive integer operators as well as all pertinent java.lang.Math methods. BigInteger further has operations for modular arithmetic, GCD computation, primality checking, prime creation, bit manipulation, and a few more unrelated functions.
The semantics of arithmetic operations exactly match those of The Java Language Specification's integer arithmetic operators. Division by zero, for instance, causes an ArithmeticException to be thrown, whereas division of a negative number by a positive number results in a negative (or zero) residual. As BigIntegers are created as large as necessary to hold the results of an operation, all of the subtleties in the Spec about overflow are disregarded.
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