Question

I have a class with four constructors. When I try to compile the main class, I get the error “cannot find symbol” at the last line of this code fragment. But every constructor for this class defines value, so I don’t know what’s going on. What am I missing?

import java.math.BigDecimal;

public class PowerTwo {

    public PowerTwo(int n){
        final BigDecimal value = new BigDecimal(n);
    }

    public PowerTwo(long n){
        final BigDecimal value = new BigDecimal(n);
    }

    public PowerTwo(BigDecimal n){
        final BigDecimal value = n;
    }

    public PowerTwo(String n){
        final BigDecimal value = new BigDecimal(n);
    }

    public int power(){
        BigDecimal two = new BigDecimal("2");
        BigDecimal remainder = value;

Answer 1

You need to make it a field, not a local variable:

public class PowerTwo {

private final BigDecimal value;

It should be outside the constructors.