Question

1. What (if anything) is wrong with the following code:

   int redCount = 0, blueCount = 0; 
   Scanner scan = new Scanner(System.in); 
   System.out.println("Please make a selection: ");
   String option = scan.next(); 
   
   while(!option.startsWith("q") || !option.startsWith("Q"))
   {
       if(option.equals("red"))
       {
            redCount++;
       }
       else
       {
            blueCount++;
       }
       System.out.println("Please enter another value: ");
       option = scan.next(); 
   }
   System.out.println("Red: " + redCount + ", Blue: " + blueCount); 

   		The condition is not a boolean expression.
   		A variable is out of scope.
   		There is nothing wrong with this code.
   		It will result in an infinte loop.
   		It contains a logic error that will cause it to function incorrectly.

2. What (if anything) is wrong with the following code:

   int redCount = 0, int blueCount = 0; 
   Scanner scan = new Scanner(System.in); 
   System.out.println("Please make a selection: ");
   String option = scan.next(); 
   
   while(!option.toLowerCase().startsWith("q"))
   {
       if(option.equals("red"))
       {
            redCount += 1;
       }
       else
       {
            blueCount += 1;
       }
   
   

       System.out.println("Please enter another value: ");
       option = scan.next(); 

   }
   System.out.println("Red: " + redCount + ", Blue: " + blueCount); 

   		A variable is out of scope.
   		The condition is not a boolean expression.
   		It will result in an infinte loop.
   		There is nothing wrong with this code.
   		It contains a logic error that will cause it to function incorrectly.

Answer 1

QUESTION (1):-

OPTION (D)  It will result in an infinte loop.

correct code given below

int redCount = 0, blueCount = 0;
       Scanner scan = new Scanner(System.in);
       System.out.println("Please make a selection: ");
       String option = scan.next();
      
       while(!(option.startsWith("q") || option.startsWith("Q")))
       {
       if(option.equals("red"))
       {
       redCount++;
       }
       else
       {
       blueCount++;
       }
       System.out.println("Please enter another value: ");
       option = scan.next();
       }
       System.out.println("Red: " + redCount + ", Blue: " + blueCount);

QUESTION (2):-

OPTION (D) There is nothing wrong with this code.

correct code given below

int redCount = 0,blueCount = 0;
       Scanner scan = new Scanner(System.in);
       System.out.println("Please make a selection: ");
       String option = scan.next();
      
       while(!option.toLowerCase().startsWith("q"))
       {
       if(option.equals("red"))
       {
       redCount += 1;
       }
       else
       {
       blueCount += 1;
       }
      
       System.out.println("Please enter another value: ");
       option = scan.next();
      
       }
       System.out.println("Red: " + redCount + ", Blue: " + blueCount);

NOTE: second code have invalid syntax in line number 1

int redCount = 0, int blueCount = 0;  

int declare two times , so option not available in list , i remove one int then program working fine.

// If any doubt please comment