Big Integer クラスは Number を拡張し、Comparable インターフェイスを実装します。これは、Java のすべての基本整数演算子と java.lang.Math パッケージのすべてのメソッドに類似したものを提供します。

これは、モジュラー算術、GCD、および以下に説明するその他の多くのメソッドまたは演算で構成されます。

例1

 import java.math.BigInteger; public class BigIntegerExample1 { public static void main(String args[]) throws Exception { // Initialize result BigInteger bigInteger = new BigInteger(&apos;1&apos;); int n=4; for (int i = 2; i <=n 4 197 ; i++){ returns a biginteger by computing ?this *val ? value. } system.out.println('factorial of : '+biginteger); boolean value ?true? if and only this is prime biginteger2="new" biginteger('197'); system.out.println('isprobableprime method will return '+ biginteger2.isprobableprime(2)); the next integer that greater than biginteger. nextprimenumber="bigInteger2.nextProbablePrime();" system.out.println('prime number to '+nextprimenumber); minimum between val min="bigInteger.min(bigInteger2);" system.out.println('min '+min); maximum max="bigInteger.max(bigInteger2);" system.out.println('maximum '+max); < pre> <span> Test it Now </span> <p> <strong>Output:</strong> </p> <pre> Factorial of 4 : 24 IsProbablePrime method will return : true Prime Number next to 197 : 199 Min value : 24 Maximum value : 197 </pre> <h2>Example 2</h2> <pre> import java.math.BigInteger; public class BigIntegerExample2 { public static void main(String args[]) throws Exception { // Initialize result BigInteger bigInteger = new BigInteger(&apos;17&apos;); //returns the signum function of this BigInteger BigInteger bigInteger2 = new BigInteger(&apos;171&apos;); System.out.println(&apos;Signum value for &apos;+bigInteger2+&apos; : &apos;+ bigInteger2.signum()); //returns the next prime integer that is greater than this BigInteger. BigInteger sub=bigInteger2.subtract(bigInteger); System.out.println(bigInteger2+&apos;-&apos;+bigInteger+&apos; : &apos;+sub); // returns the quotient after dividing two bigInteger values BigInteger quotient=bigInteger2.divide(bigInteger); System.out.print(bigInteger2+&apos; / &apos;+bigInteger+&apos; : Quotient : &apos;+quotient); //returns the remainder after dividing two bigIntger values BigInteger remainder=bigInteger.remainder(bigInteger2); System.out.println(&apos; Remaider : &apos;+remainder); //returns a BigInteger whose value is ?this &lt;&lt; val? BigInteger shiftLeft=bigInteger.shiftLeft(4); System.out.println(&apos;ShiftLeft value : &apos;+shiftLeft); } } </pre> <span> Test it Now </span> <p> <strong>Output:</strong> </p> <pre> Signum value for 171 : 1 171-17 : 154 171 / 17 : Quotient : 10 Remaider : 17 ShiftLeft value : 272 </pre> <br></=n>

例 2

 import java.math.BigInteger; public class BigIntegerExample2 { public static void main(String args[]) throws Exception { // Initialize result BigInteger bigInteger = new BigInteger('17'); //returns the signum function of this BigInteger BigInteger bigInteger2 = new BigInteger('171'); System.out.println('Signum value for '+bigInteger2+' : '+ bigInteger2.signum()); //returns the next prime integer that is greater than this BigInteger. BigInteger sub=bigInteger2.subtract(bigInteger); System.out.println(bigInteger2+'-'+bigInteger+' : '+sub); // returns the quotient after dividing two bigInteger values BigInteger quotient=bigInteger2.divide(bigInteger); System.out.print(bigInteger2+' / '+bigInteger+' : Quotient : '+quotient); //returns the remainder after dividing two bigIntger values BigInteger remainder=bigInteger.remainder(bigInteger2); System.out.println(' Remaider : '+remainder); //returns a BigInteger whose value is ?this << val? BigInteger shiftLeft=bigInteger.shiftLeft(4); System.out.println('ShiftLeft value : '+shiftLeft); } } 

出力：

 Signum value for 171 : 1 171-17 : 154 171 / 17 : Quotient : 10 Remaider : 17 ShiftLeft value : 272