compilation error, java programming, private vs public functions?

Question

import java.util.*;

public class LoanCalculator
{
    public LoanCalculator()
    {
        private double loanAmount; //dollars and cents
        private double interestRate; //percent
        private int loanPeriod; //years
    }
    
    Scanner input = new Scanner(System.in);
    
    loanAmount = input.nextDouble();
    System.out.print("The current loan amount is: " + loanAmount);
    
    interestRate = input.nextDouble();
    System.out.print("The interest rate is: " + interestRate);
    
    loanPeriod = input.nextInt();
    System.out.print("The loan period is " + loanPeriod + " years");
    
}


the error comes up at the private variables
it says illegal start of expression

? · Accepted Answer

Of course it will; your code doesn't really make that much sense.

If you're going to use private variables, you should put them outside the constructor, like so:

public class LoanCalculator {
    private double loadAmount;
    private double interestRate;
    private int loadPeriod;

    // other code here
}

It makes no sense to have a public or private variable inside the constructor (or any method, for that matter), since access modifiers only really apply for class-level variables.

Also, your code for getting input from the user should be in its own method.

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compilation error, java programming, private vs public functions?

1 Answer