Java's BigInteger class

1.BigInteger class overview

You can have data that is more than an integer range in operation.

How to construct a 2.BigInteger class

Public BigInteger (string val) converts the BigInteger decimal string representation to BigInteger

Package com;import java.math.biginteger;/** * biginteger class  *  You can have data that exceeds an integer range in arithmetic  *  construction methods  * public biginteger (String val)  *  member methods  * public biginteger add (Biginteger val)  * public BigInteger  Subtract (biginteger val)  * public biginteger multiply (biginteger val)  *  public biginteger divide (Biginteger val)  * public BigInteger[]  Divideandremainder (Biginteger val)   The first value returned is quotient   second value bit remainder  *  * */public  Class bigintegerdemo {public static void main (String[] args)  {BigInteger  b1 = new biginteger ("100"); Biginteger b2 = new biginteger ("$");//public biginteger add (BigInteger  val) System.out.println (B1.add (B2));//300system.out.println (B1.add (B2));//300system.out.println (B1.add (B2));// 300SystEm.out.println (B1.add (B2));//300//public biginteger subtract (Biginteger val) System.out.println ( B1.subtract (B2));//-100//public biginteger multiply (Biginteger val) System.out.println ( B1.multiply (B2));//20000//public biginteger divide (Biginteger val) System.out.println (B1.divide ( B2));//0//public biginteger[] divideandremainder (Biginteger val) biginteger[] bis =  b1.divideandremainder (B2); System.out.println (Bis[0]);//0system.out.println (bis[1]);//100}}

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Java's BigInteger class