Check out example codes for "scaner java". It will help you in understanding the concepts better.

Code Example 1

import java.util.Scanner;  // Import the Scanner class

class MyClass {
  public static void main(String[] args) {
    Scanner myObj = new Scanner(System.in);  // Create a Scanner object
    System.out.println("Enter username");

    String userName = myObj.nextLine();  // Read user input
    System.out.println("Username is: " + userName);  // Output user input
  }
}

Code Example 2

import java.util.scanner;

Scanner *scanner name* = new Scanner(*input source*);

// Examples:
Scanner user = new Scanner(system.in);
Scanner text = new Scanner(new File("text.txt"));

Code Example 3

//Import Scanner in java
import java.util.Scanner;

class classname{
  public methodname(){
    //Scanner declaration
    Scanner s_name = new Scanner(System.in);
    //Use Scanner to take input
    int val = s_name.nextInt();
  }
}

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