The course of A Simple Car Loan Payment Calculator

In the course A Simple Car Loan Payment Calculator

My code looks like this

public class CarLoan {
int carLoan;
int loanLength;
int interestRate;
int downPayment;

CarLoan(int a, int b, int c, int d) {
carLoan = a;
loanLength = b;
interestRate = c;
downPayment = d;
}

void cheakLoan() {
if (loanLength <= 0 || interestRate <= 0) {
System.out.println(“Error! You must take out a valid car loan.”);
} else if (downPayment >= carLoan) {
System.out.println(“The car can be paid in full.”);
} else {
int remainingBalance = carLoan - downPayment;
int months = loanLength * 12;
int monthlyBalance = remainingBalance / months;
int interest = monthlyBalance * interestRate / 100;
int monthlyPayment = monthlyBalance + interest;
System.out.println(monthlyPayment);
}
}

public static void main(String args) {
CarLoan paymentPlan = new CarLoan(10000,3,5,2000);
paymentPlan.cheakLoan();
}
}

After running, many errors are displayed. Although the code is written according to the tutorial, I still don’t understand why my method reports an error.

That code above seems to run fine for me.

code for CarLoan.java (copied from post)
public class CarLoan {
  int carLoan;
  int loanLength;
  int interestRate;
  int downPayment;

  CarLoan(int a, int b, int c, int d) {
    carLoan = a;
    loanLength = b;
    interestRate = c;
    downPayment = d;
  }

  void cheakLoan() {
    if (loanLength <= 0 || interestRate <= 0) {
      System.out.println("Error! You must take out a valid car loan.");
    } else if (downPayment >= carLoan) {
      System.out.println("The car can be paid in full.");
    } else {
      int remainingBalance = carLoan - downPayment;
      int months = loanLength * 12;
      int monthlyBalance = remainingBalance / months;
      int interest = monthlyBalance * interestRate / 100;
      int monthlyPayment = monthlyBalance + interest;
      System.out.println(monthlyPayment);
    }
  }

  public static void main(String[] args) {
    CarLoan paymentPlan = new CarLoan(10000,3,5,2000);
    paymentPlan.cheakLoan();
  }
}

Thank you, my friend ran it and said no problem, maybe there is a problem with the java compiler on the website, or it is better to use ide to run the code.