Java foundation - BigInteger BigDecimai Tarsus

BigInteger

Math

BigInteger bi1 = new BigInteger ( "123456789 "); // declare objects BigInteger 
		BigInteger bi2 = new BigInteger ( "987654321 "); // declare BigInteger objects 
		System.out.println ( "addition operations:" + bi2.add (bi1) ); // adding operation 
		System.out.println ( "subtraction operation:" + bi2.subtract (bi1)) ; // subtraction operation 
		System.out.println ( "multiplication:" + bi2.multiply (bi1)) ; multiplication // 
		System.out.println ( "division operation:" + bi2.divide (bi1)) ; // divide operation 
		System.out.println ( "maximum number:" + bi2.max (bi1)) ; // the maximum number is obtained 
		System.out.println ( "minimum number:" + bi2.min (bi1)) ; // determine the minimum number 
		BigInteger result [] = bi2.divideAndRemainder (bi1 ); // obtains a remainder division operation 
		System.out.println ( "Suppliers are:" + Result [0] + 
			"; the remainder is:" + result [1]) ;

　　

 

Comparison of size

CIN = new new Scanner Scanner (the System.in); 
        a BigInteger A, B, C, D; 
        A = cin.nextBigInteger (); 
        B = cin.nextBigInteger (); 
        C = cin.nextBigInteger (); 
        D = cin.nextBigInteger ( ); 
        IF (a.compareTo (B) <0) // this time, since a <b, the return value is less than 0; 
        { 
            System.out.println ( "A <B"); 
        } 
        IF (b.equals (C )) // this case, since b == c, the return value is equal to 0; 
        { 
            System.out.println ( "B == C"); 
        } 
        IF (d.compareTo (C)> 0) // this time, since d> c, the return value is greater than 0;   
        { 
            System.out.println ( "D> C"); 
        }

　　

BigDecimal

Math