Java Scanner toString() Method

The toString() method of Java Scanner class is used to get the string representation of Scanner using. The string representation of a Scanner contains information which is useful for debugging.

Syntax

Following is the declaration of toString() method:

Parameter

This method does not accept any parameter.

Returns

The toString() method returns the string representation of this scanner.

Exceptions

Compatibility Version

Java 1.5 and above

Example 1

import java.util.*;
public class ScannerToStringExample1 {  
    public static void main(String args[]){ 
    	  String str = "JavaTpoint 11 = 20.0 false ";
        Scanner scanner = new Scanner(str);
        System.out.println(scanner.nextLine());      
        System.out.println(""+scanner.toString());
        scanner.close();
        }  
}

Output:

JavaTpoint 11 = 20.0 false 
java.util.Scanner[delimiters=\p{javaWhitespace}+][position=27][match valid=true][need input=false][source closed=true][skipped=false][group separator=\,][decimal separator=\.][positive prefix=][negative prefix=\Q-\E][positive suffix=][negative suffix=][NaN string=\QNaN\E][infinity string=\Q∞\E]

Example 2

import java.util.*;
public class ScannerToStringExample2 {  
   public static void main(String args[]){ 
	//Input from user console
	System.out.print("Input Desired Value: ");
	//Use scanner to get the value from user console
	Scanner scan = new Scanner(System.in);		
	int intValue = scan.nextInt();
	scan.close();
	Integer myValue = intValue;
	String value = myValue.toString();
	System.out.println("String Value is: " + value);
      System.out.println();
      }
}

Output:

Input Desired Value: 2343270
String Value is: 2343270

Example 3

import java.util.*;
public class ScannerToStringExample3 {  
   public static void main(String args[]){ 
	   int[] arrayOfInts = {1, 2, 3};
	   Scanner str = new Scanner(Arrays.toString(arrayOfInts));
	   while (str.hasNext()) {
	       System.out.println("Result: "+str.next());
	   }
	   str.close();
         }
}

Output:

Result: [1,
Result: 2,
Result: 3]

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