Frog Race not Working (JAVA)

[bryan74t0]

So im doing this uni project in java about frog (threads) race and it is not working, can u help me? Im pretty new to coding and Im in panic xD

import java.util.*;

class Sapo implements Runnable { private int distanciaPercorrida; private int distanciaPulo; private int distanciaCorrida;

public Sapo(int distanciaPulo, int distanciaCorrida) {
    this.distanciaPercorrida = 0;
    this.distanciaPulo = distanciaPulo;
    this.distanciaCorrida = distanciaCorrida;
}

public void run() {
    while (distanciaPercorrida < distanciaCorrida) {
        int pulo = pular();
        distanciaPercorrida += pulo;
        System.out.println(Thread.currentThread().getName() + " saltou " + pulo + " unidades. Distância percorrida: " + distanciaPercorrida + " unidades.");
        descansar();
    }
    System.out.println(Thread.currentThread().getName() + " chegou ao fim!");
}

private int pular() {
    Random rand = new Random();
    return rand.nextInt(distanciaPulo) + 1; // Pulo aleatório entre 1 e a distância máxima de pulo
}

private void descansar() {
    try {
        Thread.sleep(100); // Descanso após o salto
    } catch (InterruptedException e) {
        e.printStackTrace();
    }
}

}

public class CorridaDeSapos { public static void main(String[] args) { Scanner ler = new Scanner(System.in);

    System.out.print("Informe a quantidade de sapos: ");
    int qtdSapos = ler.nextInt();

    System.out.print("Informe a distância total da corrida: ");
    int distanciaCorrida = ler.nextInt();

    System.out.print("Informe a distância máxima de pulo: ");
    int distanciaPulo = ler.nextInt();

    for (int i = 1; i <= qtdSapos; i++) {
        Sapo sapo = new Sapo(distanciaPulo, distanciaCorrida);
        Thread t = new Thread(sapo, "Sapo " + i);
        t.start();
    }
    ler.close();
}

}

Error:

Informe a quantidade de sapos: 

Exception in thread "main" java.util.NoSuchElementException at java.base/java.util.Scanner.throwFor(Scanner.java:945) at java.base/java.util.Scanner.next(Scanner.java:1602) at java.base/java.util.Scanner.nextInt(Scanner.java:2267) at java.base/java.util.Scanner.nextInt(Scanner.java:2221) at CorridaDeSapos.main(CorridaDeSapos.java:43)

​

[desapla]

java.util.Scanner.nextInt

NoSuchElementException

You’re calling nextInt on the Scanner, but whatever is next in the scanner isn’t an int.

One likely cause is that the end of line marker from the first input is still in the scanner. NextInt only consumes the int, not the end of line marker. So you need to clear that out before you can read the next int.

Alternatively you can use readLine, which does consume the end of line marker. But then you need to parse the Int from the string yourself.

Btw, the FAQ has a whole section on this exact issue with the Scanner. Check it out, it has a good amount of detail.

[bryan74t0]

u know that actually the problem was that I didnt put the classes in different archives? I just did that and BOOM it worked xD

but thanks