Java Api--biginteger Class

1, BigInteger class overview        

Allows data to be calculated over an integer range    

2. Construction Method     

Public BigInteger (String val)

3. BigInteger class member MethodPublic BigInteger Add (BigInteger val): Plus public BigInteger subtract (BigInteger val): Minus public BigInteger Multi Ply (BigInteger val): By Public BigInteger divide (BigInteger val): Except public biginteger[] Divideandremainder (Bigi Nteger val): Returns an array of quotient and remainderExample 1:

 Public classBigIntegerDemo01 { Public Static voidMain (string[] args) {Integer I=NewInteger ("100");        System.out.println (i); System.out.println (Integer.max_value); //2147483647Integer II =NewInteger ("2147483647");        SYSTEM.OUT.PRINTLN (ii); //numberformatexception Error//Integer III = new Integer ("2147483648");//System.out.println (iii); //creating objects from large integersBigInteger III =NewBigInteger ("2147483648"); SYSTEM.OUT.PRINTLN (iii); //2147483648    }}

Example 2:

ImportJava.math.BigInteger;/***public BigInteger Add (BigInteger val): Plus *public BigInteger subtract (BigInteger val): Minus *public BigInteger Multiply ( BigInteger val): Multiply *public BigInteger divide (BigInteger val): Except *public biginteger[] Divideandremainder (BigInteger val) : Returns an array of quotient and remainder*/ Public classBigIntegerDemo02 { Public Static voidMain (string[] args) {BigInteger bi1=NewBigInteger ("100"); BigInteger Bi2=NewBigInteger ("50"); System.out.println ("Add:" +Bi1.add (BI2)); System.out.println ("Subtract:" +bi1.subtract (BI2)); System.out.println ("Multiply:" +bi1.multiply (BI2)); System.out.println ("Divide:" +bi1.divide (BI2)); biginteger[] bis=Bi1.divideandremainder (BI2); System.out.println ("Shang:" +bis[0]); System.out.println ("Remainder:" +bis[1]); }}

Output Result:Add:150subtract:50multiply:5000divide:2:2-odd: 0

Java Api--biginteger Class