variables non définies dans le code java

Question

S'il vous plaît ont alook Dans le code ci-dessus au-dessous du code

public class Account { 

    private String firstName; 
    private String lastName; 
    private int accountNumber; 
    private int apin; 
    private double abalance; 

    public Account(String fname, String lname, int anumber, int pin, 
      double balance) { 
     fname = firstName; 
     lname = lastName; 
     anumber = accountNumber; 
     pin = apin; 
     balance = abalance; 

     System.out.println("variables set"); 
    } 

    public String getfirstName() { 
     return firstName; 
    } 

    public String getlastName() { 
     return lastName; 
    } 

    public int getaccountNumber() { 
     return accountNumber; 
    } 

    public int getpin() { 
     return apin; 
    } 

    public double getbalance() { 
     return abalance; 
    } 

} 

public class bank { 

    private Account[] account; 
    boolean flag = false; 
    Account returnAccount; 

    public Account bank(int anum, int pin) { 
     account = new Account[3]; 
     account[0] = new Account("Steve", "Kom", 1234, 333, 50000); 
     account[1] = new Account("Mack", "Dumbo", 2345, 123, 80000); 
     account[2] = new Account("Xina", "Patt", 2145, 222, 40000); 

     System.out.println(account[0].getaccountNumber()); 

     for (Account aa : account) { 
      System.out.println(aa.getaccountNumber()); 
     } 

     return returnAccount; 
    } 
} 

les méthodes get me reviennent toujours 0, pourquoi les variables ne sont pas se définir. Je suis si confus ce que je fais mal.

Answer 1

Vous définissez des valeurs erronées dans le constructeur

fname = firstName; 

changement à

this.firstName = fname; 

Answer 2

public Account(String fname, String lname, int anumber, int pin, 
    double balance) { 
fname = firstName; // swap 
lname = lastName; // swap 
anumber = accountNumber; 
pin = apin; 
balance = abalance; 

System.out.println("variables set"); 
} 

Answer 3

syntaxe d'affectation incorrect dans le constructeur:

public Account(String fname, String lname, int anumber, int pin, 
     double balance) { 
    fname = firstName; //incorrect assignment 
    lname = lastName; //incorrect assignment 
    anumber = accountNumber; //incorrect assignment 
    pin = apin; //incorrect assignment 
    balance = abalance; //incorrect assignment 

    System.out.println("variables set"); 
} 

qui devrait être

public Account(String fname, String lname, int anumber, int pin, double balance) { 
     firstName = fname; //switched - correct assignment 
     lastName = lname ; //switched - correct assignment 
     accountNumber = anumber; //switched - correct assignment 
     apin = pin ; //switched - correct assignment 
     abalance = balance; //switched - correct assignment 

     System.out.println("variables set"); 
}