Java static 关键字的使用 小练习

package com.bytezreo.statictest2;

/**
 * 
 * @Description  static 关键字的使用 小练习
 * @author Bytezero·zhenglei!        Email:420498246@qq.com
 * @version
 * @date 上午9:34:02
 * @     
 *
 */
public class AccountTest 
{
    public static void main(String[] args) {
        
        Account acct1 = new Account();
        Account acct2 = new Account("123456" ,2000);
        Account.setInterestRate(0.012);
        Account.setMinMoney(100);
        
        System.out.println(acct1);
        System.out.println(acct2);
        
        System.out.println(acct1.getInterestRate());
        System.out.println(acct1.getMinMoney());
        System.out.println(acct2.getMinMoney());
        
    }
}

package com.bytezreo.statictest2;

public class Account 
{
      private int id;
      private String pwd = "000000";
      private double balance;
      
      private static double interestRate; 
      private static double minMoney = 1.0;
      
      private static int init = 1001;  //用于自动生成 账户
      
      public Account()
      {
           id = init++;
      }
      
      public Account(String pwd,double banlance)
      {
          id = init++;
          this.pwd = pwd;
          this.balance = banlance;
      }

    public String getPwd() {
        return pwd;
    }

    public void setPwd(String pwd) {
        this.pwd = pwd;
    }

    public static double getInterestRate() {
        return interestRate;
    }

    public static void setInterestRate(double interestRate) {
        Account.interestRate = interestRate;
    }

    public static double getMinMoney() {
        return minMoney;
    }

    public static void setMinMoney(double minMoney) {
        Account.minMoney = minMoney;
    }

    public int getId() {
        return id;
    }

    public double getBalance() {
        return balance;
    }

    @Override
    public String toString() {
        return "Account [id=" + id + ", pwd=" + pwd + ", balance=" + balance + "]";
    }
      
      
      
}