Hi, how do I solve this challenge?

Ok so first off please when you past code use the markdown so its not horrible to read :P

Here is what you said

String response; //1
do { //2
response = console.readLine("Do you understand do while loop?"); //3
if(response.equalsIgnoreCase("No")); } } //4
while (response.equalsIgnoreCase("No"));//5

So here is what I think you were trying to write

String response;
do{
response = console.readLine("Do you understand do while loop?");
System.out.println(response);
}while(!response.equalsIgnoreCase("No"));

So let's break down where you went wrong here.

at line 4 you have an unnecessary if statement you dont need to check if its equal to no that is what the do while is supposed to do.

Also on line 4 the scope of that if statement is mistyped it should be {} not } } generally you also want something to execute inside of your scope.

On line 5 you want to continue to do this while it IS NOT equal to NO so make sure you have an ! to indicate that you want it when it is NOT, not when it IS.