Scanner radix() method in Java with Examples

The radix() method of java.util.Scanner class returns this scanner’s default radix.

Syntax:

public int radix()

Return Value: This function returns the default radix of this scanner.

Below programs illustrate the above function:

Program 1:

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// Java program to illustrate the
// radix() method of Scanner class in Java
  
import java.util.*;
  
public class GFG1 {
    public static void main(String[] argv)
        throws Exception
    {
  
        String s = "Geeksforgeeks has Scanner methods";
  
        // create a new scanner
        // with the specified String Object
        Scanner scanner = new Scanner(s);
  
        // print a line of the scanner
        System.out.println("Scanner String:\n"
                           + scanner.nextLine());
  
        // print the default radix
        System.out.println("Default Radix value: "
                           + scanner.radix());
  
        // close the scanner
        scanner.close();
    }
}

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Output:

Scanner String:
Geeksforgeeks has Scanner methods
Default Radix value: 10

Program 2:

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// Java program to illustrate the
// radix() method of Scanner class in Java
  
import java.util.*;
  
public class GFG1 {
    public static void main(String[] argv)
        throws Exception
    {
  
        String s = "Geeksforgeeks";
  
        // create a new scanner
        // with the specified String Object
        Scanner scanner = new Scanner(s);
  
        // print a line of the scanner
        System.out.println("Scanner String: "
                           + scanner.nextLine());
  
        // print the default radix
        System.out.println("Default Radix value: "
                           + scanner.radix());
  
        // change the radix of this scanner
        scanner.useRadix(30);
  
        System.out.println("Radix changed to 30");
  
        // print the default radix
        System.out.println("Default Radix value: "
                           + scanner.radix());
  
        // close the scanner
        scanner.close();
    }
}

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Output:

Scanner String: Geeksforgeeks
Default Radix value: 10
Radix changed to 30
Default Radix value: 30

Reference: https://docs.oracle.com/javase/7/docs/api/java/util/Scanner.html#radix()



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