当用户在输入中输入特定字符串时中断程序

Question

I want to make it so that the user inputs some string, and the program takes console input until user types "/done".. so here's how it would work:

1. print to user: enter your string

2. user enters: hello eclipse.

hi test blah blah

bla 456 testmore /done

As soon as user enters /done within any string of any size, the program breaks. The program would NOT end if you hit "enter" key. It would only end if you type in /done.. How I setup my program so far:

Scanner 123 = new Scanner(System.in);
string input = "";
System.out.println("Enter your string: ");

do {
    input = 123.nextLine();
    System.out.print("Rest of program here..");
}

while (!input.equals("/done"));

I tried putting under while loop there something like below but I don't think I am doing it right.

while (!input.equals("/done"));
    if input.equals("/done");
    break;
}

I understand that with a do-while loop, it continues as long as boolean in while is false. So for my program, program takes inputs until user types in /done so boolean is false until string /done in inputted. Then according to the logic above, the program breaks as soon as input equals "/done"

Any ideas on what I'm doing wrong?

Answer 1

         Scanner s=new Scanner(System.in);
         String input = "";
         String[] parts;
         System.out.println("Enter your string: ");
         while (true){
             input=s.nextLine();
            if (input.contains("/done")){
            parts=input.split("/done");
            //Use parts[0] to do any processing you want with the part of the string entered before /done in that line
                break;
            }
        }

Answer 2

I think this will work fine

Scanner scanner = new Scanner(System.in);
    String input = "";
    System.out.println("Enter your string: ");
        do {
        input = scanner.nextLine();
    } while (!input.contains("/done"));
    System.out.print("Rest of program here..");