Question
Java Programming. can anybody check my code. I don't whats wrong with it. import java.io.File; import java.io.FileNotFoundException; import java.util.Random; import java.util.Scanner; public class Magic8Ball {
Java Programming. can anybody check my code. I don't whats wrong with it.
import java.io.File; import java.io.FileNotFoundException; import java.util.Random; import java.util.Scanner;
public class Magic8Ball { static String[] theMessage; public static void main(String args[]) {
String fileName = ("");
if (args.length == 0) { Scanner s = new Scanner(System.in); System.out.print("Please enter file name:"); fileName = s.nextLine(); s.close(); } else if (args.length == 1) { fileName = args[0];
} else { System.out.println("Usafe: java m8b[filename]"); System.exit(0); }
try { Scanner f = new Scanner(new File(fileName)); String s_size = f.nextLine(); int size = Integer.parseInt(s_size); theMessage = new String[size]; for (int i = 0; i
String question = ""; Scanner sc = new Scanner(System.in); Random random = new Random(); do { System.out.print("Your question please? "); question = sc.nextLine();
if (!question.equals("")) { System.out.println(theMessage[random.nextInt(theMessage.length)]); } } while (!question.equals(""));
System.out.println("Bye! Visit me again!"); sc.close(); } }
Error code:
Your question please? Exception in thread "main" java.util.NoSuchElementException: No line found at java.base/java.util.Scanner.nextLine(Scanner.java:1651) at test.Magic8Ball.main(Magic8Ball.java:50)
Magic 8 Ball Write a program that simulates a Magic 8 Ball, which is a fortune-telling toy that displays a random response to a yes or no question. In the student sample programs for this book, you will find a text file named 8_ball_responses.txt. The file contains 12 responses, such as "I don't think so", "Yes, of course!", "I'm not sure", and so forth. The program should read the responses from the file into a list. It should prompt the user to ask a question, then display one of the responses, randomly selected from the list. The program should repeat until the user is ready to quit. Contents of 8_ball_responses.txt: Yes, of course! without a doubt, yes. You can count on it. For sure! Ask me later. I'm not sure. I can't tell you right now. I'll tell you after my nap. No way! I don't think so. without a doubt, no. The answer is clearly NO. Magic 8 Ball Write a program that simulates a Magic 8 Ball, which is a fortune-telling toy that displays a random response to a yes or no question. In the student sample programs for this book, you will find a text file named 8_ball_responses.txt. The file contains 12 responses, such as "I don't think so", "Yes, of course!", "I'm not sure", and so forth. The program should read the responses from the file into a list. It should prompt the user to ask a question, then display one of the responses, randomly selected from the list. The program should repeat until the user is ready to quit. Contents of 8_ball_responses.txt: Yes, of course! without a doubt, yes. You can count on it. For sure! Ask me later. I'm not sure. I can't tell you right now. I'll tell you after my nap. No way! I don't think so. without a doubt, no. The answer is clearly NO
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