Scanner radix() method in Java with Examples

Last Updated : 11 Oct, 2018

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:

// 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(); 
    } 
} 

Output:

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

Program 2:

// 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(); 
    } 
} 

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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