java - 错误: cannot find symbol while passing value

Question

这个问题已经有答案了:

What does a "Cannot find symbol" or "Cannot resolve symbol" error mean? (18 个回答)

已关闭 7 年前。

我用两个参数实例化一个对象。同时尝试传递另一个值(变量“利息”)。

我收到错误:

error: cannot find symbol
    investor1.initialize(interest);
             ^

符号:方法初始化(double) 位置:投资者类型的变量投资者11 个错误

工具已完成，退出代码为 1

我需要创建另一个对象吗？或者传递这个值的正确方法是什么？

    public static void main(String[] args){

    Scanner stdIn = new Scanner(System.in);

    Investor investor1 = new Investor (1001, 2000); //

    System.out.print("Please enter the Annual Interest Rate you hope to earn; ");
    double interest = stdIn.nextDouble();

    investor1.initialize(interest); //here is where I get the error.

    System.out.println("Monthly balances for one year with " + interest + " annual interest:");
    System.out.printf("\n%s\t%s\t%s", "Month", "Account #", "Balance");
    System.out.printf("\n%s\t%s\t%s\n", "-----", "---------", "-------");



    for (int i = 0; i < 12; i++){

        System.out.printf("\n%5d\t%9d\t%7.2f", i, investor1.getAccount(),investor1.getBalance());
    }

代码第二部分:

    public class Investor{

    private double interest;
    private final int Account_Number;
    private double balance;
    //***********************************************************
    public Investor(int account, double bal){
        this.Account_Number = account;
        this.balance = bal;
    }
   //********************************************************************
    public void initialize(double temp){
        this.interest = temp;
    }

    public double getInt(){
        return interest;
    }

    public int getAccount(){
        return this.Account_Number;
    }

    public double getBalance(){
        return this.balance;
    }
}//end of investor

感谢您的帮助

Answer 1

我按照如下方式重建了您的代码，错误消失了(而且它是可执行的)。请看一下是否可以正常运行:

import java.util.Scanner;

public class Investor {

    public static void main(String[] args) {

        Scanner stdIn = new Scanner(System.in);
        Investor investor1 = new Investor(1001, 2000); //

        System.out.print("Please enter the Annual Interest Rate you hope to earn; ");
        double interest = stdIn.nextDouble();

        investor1.initialize(interest); // here is where I get the error.

        System.out.println("Monthly balances for one year with " + interest + " annual interest:");
        System.out.printf("\n%s\t%s\t%s", "Month", "Account #", "Balance");
        System.out.printf("\n%s\t%s\t%s\n", "-----", "---------", "-------");

        for (int i = 0; i < 12; i++) {

            System.out.printf("\n%5d\t%9d\t%7.2f", i, investor1.getAccount(), investor1.getBalance());
        }
    }

    private double interest;
    private final int Account_Number;
    private double balance;

    // ***********************************************************
    public Investor(int account, double bal) {
        this.Account_Number = account;
        this.balance = bal;
    }

    // ********************************************************************
    public void initialize(double temp) {
        this.interest = temp;
    }

    public double getInt() {
        return interest;
    }

    public int getAccount() {
        return this.Account_Number;
    }

    public double getBalance() {
        return this.balance;
    }
}// end of investor