TextIO cannot be resolved!yardim lutfen

package com.obss.jss.textornek; 
   
  import java.util.Scanner; 
   
  public class TextOrnek { 
   
  	public static void main(String[] args) { 
  		// TODO Auto-generated method stub 
  		int userInput; 
  		int square; 
  		 
  		Scanner scanner = new Scanner(System.in); 
  		 
  		System.out.print("Please type a number:"); 
  		userInput=scanner.nextInt(); 
  		square=userInput*userInput; 
  		System.out.print("The square of that number is "); 
  		System.out.println(square);  
  		 
  	} 
   
  }