java - 如何在另一个类中打印数组？

Question

基本上，我有一个类，其中有我的数组，就像这样

    public final class DepotDatabase {
    private Driver[] arrayDrivers;

     public DepotDatabase() {
        arrayDrivers = new Driver[4];

    arrayDrivers[0] = new Driver(1234, 1234, 0); // sample driver
    arrayDrivers[1] = new Driver(4444, 4444, 0); // sample driver
    arrayDrivers[2] = new Driver(1337, 1337, 1);   // sample manager
    arrayDrivers[3] = new Driver(1234, 1234, 0); // sample driver

}

我想在另一个类中打印这个数组，我确实在另一个类中设置了该数组

public Driver(int username, int password, int managerCheck) {
    this.username = username;
    this.password = password;
    this.managerCheck = managerCheck;
}

但现在我希望能够打印出所有驱动程序，但在另一个类中，该类将被称为 ViewDrivers 或类似的东西

Answer 1

您可以在DepotDatabase中创建一个方法来打印数组，然后从中创建一个对象并调用打印方法。

public final class DepotDatabase {
private Driver[] arrayDrivers;

public void printArray() {
    for (int i = 0; i < arrayDrivers.length; i++) {
        Driver d = arrayDrivers[i];

        System.out.println("Username : " + d.getUsername());
        System.out.println("Password : " + d.getPassword());
        System.out.println(" Manager Check: " + d.getManagerCheck());

    }
}

从测试类中您可以执行以下操作:

public void execute() {
    DepotDatabase  ddb = new DepotDatabase();
    ddb.printArray();
}