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Java Scanner hasNextBigDecimal() Method with Example

Scanner Class hasNextBigDecimal() method: Here, we are going to learn about the hasNextBigDecimal() method of Scanner Class with its syntax and example.
Submitted by Preeti Jain, on February 18, 2020

Scanner Class hasNextBigDecimal() method

• hasNextBigDecimal() method is available in java.util package.
• hasNextBigDecimal() method is used to check whether the next token in this Scanner input can be manipulated as a BigDecimal or not.
• hasNextBigDecimal() method is a non-static method, it is accessible with the class object only and if we try to access the method with the class name then we will get an error.
• hasNextBigDecimal() method may throw an exception at the time of checking BigDecimal.
  IllegalStateException This exception may throw when this Scanner is not opened.

Syntax:

    public boolean hasNextBigDecimal();

Parameter(s):

• It does not accept any parameter.

Return value:

The return type of the method is boolean, it returns true when this Scanner next token is a valid BigDecimal using the nextBigDecimal() method otherwise it returns false.

Example:

// Java program to demonstrate the example 
// of boolean hasNextBigDecimal() method of Scanner 

import java.util.*;

public class hasNextBigDecimalScanner {
    public static void main(String[] args) {
        String str = "Hi, [IncludeHelp] + 10.0 ";

        // Instantiates a Scanner object with
        // the given string str
        Scanner sc = new Scanner(str);

        // Display str
        System.out.println("sc.nextLine(): " + sc.nextLine());

        // By using hasNextBigDecimal() method is
        // to check whether this Scanner next token
        // contain BigDecimal or not
        boolean status = sc.hasNextBigDecimal();
        System.out.println("sc.hasNextBigDecimal(): " + sc.hasNextBigDecimal());

        // By using close() method is to 
        // close the Scanner object
        sc.close();
    }
}

Output

sc.nextLine(): Hi, [IncludeHelp] + 10.0 
sc.hasNextBigDecimal(): false