if 语句执行 else 语句

Question

I am making a number guessing game in where it generates a random number and the user has to guess it. I am asking the user to try again but if they say yes it gives the else statement and if they say no it works as planned.

I wanted to mention that the number guessing part does also not work. What I mean is that it is for some reason not letting the user ever guess the number right. It doesn't give me any error so I do not know what to do. so please help me out with that too if you can. Also, I am very new to Java so if there is an obvious solution please do not make fun of me.

import java.util.Random;
import java.util.Scanner;
class Main {
  public static void main(String[] args) {
      while (true){
System.out.print("Guess a number 1-10.");
Random rand = new Random();
int n = rand.nextInt(10);
Scanner numgood = new Scanner(System.in);
String a = numgood.next();
if (a.equals(n)) {
  System.out.println("Correct! Wanna do another round? (yes/no)\n"); 
  Scanner round  = new Scanner(System.in);
  String r = round.next();
  if (r.equals("yes")) {
    System.out.print("\033[H\033[2J");  
  System.out.flush();  
  }
  if (r.equals("no")) {
    System.out.println("Thanks for playing! Bye!");
    System.exit(0);
    numgood.close();
  }
  else {
    System.out.println("Answer with a correct statement");
    round.close();
  }
}
else {
  System.out.println("Incorrect! Wanna do another round?\n");
    Scanner round2  = new Scanner(System.in);
    String e = round2.next();
  if (e.equals("yes")) {
    System.out.flush();
  }
  if (e.equals("no")) {
    System.out.flush();
    System.out.println("Thanks for playing! Bye!");
    System.exit(0);
  }
  else {
    System.out.println("Answer with a correct statement");
    round2.close();
  }
}
}
}
}

Answer 1

The equals method at first checks if the given parameter is the same type as the object, this method is called on.

You declare variable n as an int and variable a as a String The equals method as implemented in class String returns false because n is not of type String .

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In that case, how would I fix it? – SamiOsman21

At your level you should change a to type int too and compare it with n using the == operator. Of cause you also have to change a = numgood.next(); to a = numgood.nextInt(); .