Which of these programs can display what the user enters on the keyboard until the user enters the word: ok?

Question

Accepted Answer

Scanner sc = new Scanner(System.in);  
 	 String s = ""; 
 	 while(s.compareTo("ok") != 0) 
         {  
 	      s = sc.nextLine();  
 	    System.out.println(s); 
 	 }

Answer

Scanner sc = new Scanner(System.in);  
 	 String s = ""; 
 	 while(s.compareTo("ok") == 0) 
         {  
 	     s = sc.nextLine();  
 	   System.out.println(s); 
 	}

Answer

Scanner sc = new Scanner(System.in);  
 	 String s = ""; 
 	 while(sc.hasNext()) 
         {  
 	    if (s.compareTo("ok") != 0)
           {
               s = sc.nextLine();  
 	       System.out.println(s); 
 	   }
        }

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Which of these programs can display what the user enters on the keyboard until t...

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