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Java.util.Scanner.nextBigInteger() Method
Description
The java.util.Scanner.nextBigInteger(int radix) method scans the next token of the input as a BigInteger. If the next token matches the Integer regular expression defined above then the token is converted into a BigInteger value as if by removing all group separators, mapping non-ASCII digits into ASCII digits via the Character.digit, and passing the resulting string to the BigInteger(String, int) constructor with the specified radix.
Declaration
Following is the declaration for java.util.Scanner.nextBigInteger() method
public BigInteger nextBigInteger(int radix)
Parameters
radix − the radix used to interpret the token
Return Value
This method returns the BigInteger scanned from the input
Exception
InputMismatchException − if the next token does not match the Integer regular expression, or is out of range
NoSuchElementException − if the input is exhausted
IllegalStateException − if this scanner is closed
Example
The following example shows the usage of java.util.Scanner.nextBigInteger() method.
package com.tutorialspoint; import java.util.*; public class ScannerDemo { public static void main(String[] args) { String s = "23 Hello World! 3 + 3.0 = 6 "; // create a new scanner with the specified String Object Scanner scanner = new Scanner(s); // scan next token as a Big Integer with radix 4 System.out.println("" + scanner.nextBigInteger(4)); // close the scanner scanner.close(); } }
Let us compile and run the above program, this will produce the following result −
11