public final class Scanner
      extends Object
      implements Iterator 

Scanner in = new Scanner(System.in);

Scanner in = new Scanner("Hello Javatpoint");

import java.util.*;
public class ScannerExample {
public static void main(String args[]){
          Scanner in = new Scanner(System.in);
          System.out.print("Enter your name: ");
          String name = in.nextLine();
          System.out.println("Name is: " + name);           
          in.close();           
          }
}

Enter your name: sonoo jaiswal
Name is: sonoo jaiswal

import java.util.*;
public class ScannerClassExample1 {  
      public static void main(String args[]){                   
          String s = "Hello, This is JavaTpoint.";
          //Create scanner Object and pass string in it
          Scanner scan = new Scanner(s);
          //Check if the scanner has a token
          System.out.println("Boolean Result: " + scan.hasNext());
          //Print the string
          System.out.println("String: " +scan.nextLine());
          scan.close();         
          System.out.println("--------Enter Your Details-------- ");
          Scanner in = new Scanner(System.in);
          System.out.print("Enter your name: ");  
          String name = in.next(); 
          System.out.println("Name: " + name);         
          System.out.print("Enter your age: ");
          int i = in.nextInt();
          System.out.println("Age: " + i);
          System.out.print("Enter your salary: ");
          double d = in.nextDouble();
          System.out.println("Salary: " + d);       
          in.close();         
          }  
}

Boolean Result: true
String: Hello, This is JavaTpoint.
-------Enter Your Details--------- 
Enter your name: Abhishek
Name: Abhishek
Enter your age: 23
Age: 23
Enter your salary: 25000
Salary: 25000.0

import java.util.*;
public class ScannerClassExample2 {  
      public static void main(String args[]){                   
          String str = "Hello/This is JavaTpoint/My name is Abhishek.";
          //Create scanner with the specified String Object
          Scanner scanner = new Scanner(str);
          System.out.println("Boolean Result: "+scanner.hasNextBoolean());          
          //Change the delimiter of this scanner
          scanner.useDelimiter("/");
          //Printing the tokenized Strings
          System.out.println("---Tokenizes String---"); 
      while(scanner.hasNext()){
          System.out.println(scanner.next());
      }
          //Display the new delimiter
          System.out.println("Delimiter used: " +scanner.delimiter());          
          scanner.close();
          }  
}

Boolean Result: false
---Tokenizes String---
Hello
This is JavaTpoint
My name is Abhishek.
Delimiter used: /